[673b0d8] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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| 3 | <!ENTITY % general-entities SYSTEM "../general.ent">
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| 4 | %general-entities;
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| 5 | ]>
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[a001133] | 6 | <sect1 id="ch-system-coreutils" xreflabel="Coreutils" role="wrap">
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[673b0d8] | 7 | <title>Coreutils-&coreutils-version;</title>
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| 8 | <?dbhtml filename="coreutils.html"?>
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| 9 |
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| 10 | <indexterm zone="ch-system-coreutils"><primary sortas="a-Coreutils">Coreutils</primary></indexterm>
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[bc82645e] | 11 |
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[a001133] | 12 | <sect2 role="package"><title/>
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[5888299] | 13 | <para>The Coreutils package contains utilities for showing and setting the
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| 14 | basic system characteristics.</para>
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| 15 |
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[a001133] | 16 | <segmentedlist>
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| 17 | <segtitle>&buildtime;</segtitle>
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| 18 | <segtitle>&diskspace;</segtitle>
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| 19 | <seglistitem><seg>0.9 SBU</seg><seg>69 MB</seg></seglistitem>
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| 20 | </segmentedlist>
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[673b0d8] | 21 |
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[a001133] | 22 | <segmentedlist>
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| 23 | <segtitle>Coreutils installation depends on</segtitle>
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| 24 | <seglistitem><seg>Bash, Binutils, Coreutils, Diffutils, GCC,
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| 25 | Gettext, Glibc, Grep, Make, Perl, Sed</seg></seglistitem>
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| 26 | </segmentedlist>
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| 27 | </sect2>
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[cd8e54e] | 28 |
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[a001133] | 29 | <sect2 role="installation">
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[73aedd1d] | 30 | <title>Installation of Coreutils</title>
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| 31 |
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[ef13657] | 32 | <para>A known issue with the <command>uname</command> program from
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| 33 | this package is that the <parameter>-p</parameter> switch always
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| 34 | returns <computeroutput>unknown</computeroutput>. The following patch
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| 35 | fixes this behavior for Intel architectures:</para>
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[73aedd1d] | 36 |
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[c6f6bd7] | 37 | <screen><userinput>patch -Np1 -i ../coreutils-&coreutils-version;-uname-2.patch</userinput></screen>
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[73aedd1d] | 38 |
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[ef13657] | 39 | <para>Prevent Coreutils from installing binaries that will be later be
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| 40 | installed by other packages:</para>
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[73aedd1d] | 41 |
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[6aaa1b0] | 42 | <screen><userinput>patch -Np1 -i ../coreutils-&coreutils-version;-suppress_uptime_kill_su-1.patch</userinput></screen>
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[73aedd1d] | 43 |
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| 44 | <para>Now prepare Coreutils for compilation:</para>
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| 45 |
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[673b0d8] | 46 | <screen><userinput>DEFAULT_POSIX2_VERSION=199209 ./configure --prefix=/usr</userinput></screen>
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[73aedd1d] | 47 |
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| 48 | <para>Compile the package:</para>
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| 49 |
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| 50 | <screen><userinput>make</userinput></screen>
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| 51 |
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[ef13657] | 52 | <para>The test suite of Coreutils makes several assumptions about the
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| 53 | presence of files and users that are not valid this early in the LFS
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| 54 | build. Therefore, additional items need to be set up before running
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| 55 | the tests. Skip down to <quote>Install the package</quote> if you are
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| 56 | not running the test suite.</para>
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[cd0c92d6] | 57 |
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[9dfc02f] | 58 | <para>Create two dummy groups and a dummy user name:</para>
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[73aedd1d] | 59 |
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[cd0c92d6] | 60 | <screen><userinput>echo "dummy1:x:1000" >> /etc/group
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| 61 | echo "dummy2:x:1001:dummy" >> /etc/group
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| 62 | echo "dummy:x:1000:1000:::/bin/bash" >> /etc/passwd</userinput></screen>
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[73aedd1d] | 63 |
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[ef13657] | 64 | <para>Now the test suite is ready to be run. First, run the tests that
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| 65 | are meant to be run as user <emphasis>root</emphasis>:</para>
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[73aedd1d] | 66 |
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[1ba4207] | 67 | <screen><userinput>make NON_ROOT_USERNAME=dummy check-root</userinput></screen>
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[73aedd1d] | 68 |
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[ef13657] | 69 | <para>Then run the remainder of the tests as the
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| 70 | <emphasis>dummy</emphasis> user:</para>
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[73aedd1d] | 71 |
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[ac55dee] | 72 | <screen><userinput>src/su dummy -c "make RUN_EXPENSIVE_TESTS=yes check"</userinput></screen>
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[73aedd1d] | 73 |
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[ef13657] | 74 | <para>When testing is complete, remove the dummy user and
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| 75 | groups:</para>
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[73aedd1d] | 76 |
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[8dffa04] | 77 | <screen><userinput>sed -i '/dummy/d' /etc/passwd /etc/group</userinput></screen>
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[73aedd1d] | 78 |
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| 79 | <para>Install the package:</para>
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| 80 |
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| 81 | <screen><userinput>make install</userinput></screen>
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| 82 |
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[ef13657] | 83 | <para>Move programs to the proper locations:</para>
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[73aedd1d] | 84 |
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[9dfc02f] | 85 | <screen><userinput>mv /usr/bin/{[,basename,cat,chgrp,chmod,chown,cp,dd,df} /bin
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[ef13657] | 86 | mv /usr/bin/{date,echo,false,head,hostname,install,ln} /bin
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| 87 | mv /usr/bin/{ls,mkdir,mknod,mv,pwd,rm,rmdir,sync} /bin
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[ac55dee] | 88 | mv /usr/bin/{sleep,stty,test,touch,true,uname} /bin
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[73aedd1d] | 89 | mv /usr/bin/chroot /usr/sbin</userinput></screen>
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| 90 |
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[9dfc02f] | 91 | <para>Finally, create a symlink to be FHS-compliant:</para>
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[73aedd1d] | 92 |
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[9dfc02f] | 93 | <screen><userinput>ln -s ../../bin/install /usr/bin</userinput></screen>
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[73aedd1d] | 94 |
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| 95 | </sect2>
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[bc82645e] | 96 |
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[5888299] | 97 |
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[c6cb3aa] | 98 | <sect2 id="contents-coreutils" role="content"><title>Contents of Coreutils</title>
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[673b0d8] | 99 |
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[c6cb3aa] | 100 | <segmentedlist>
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| 101 | <segtitle>Installed programs</segtitle>
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| 102 | <seglistitem><seg>basename, cat, chgrp, chmod,
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[673b0d8] | 103 | chown, chroot, cksum, comm, cp, csplit, cut, date, dd, df, dir, dircolors,
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| 104 | dirname, du, echo, env, expand, expr, factor, false, fmt, fold, groups, head,
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| 105 | hostid, hostname, id, install, join, link, ln, logname, ls, md5sum,
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| 106 | mkdir, mkfifo, mknod, mv, nice, nl, nohup, od, paste, pathchk, pinky, pr,
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| 107 | printenv, printf, ptx, pwd, readlink, rm, rmdir, seq, sha1sum, shred, sleep,
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| 108 | sort, split, stat, stty, su, sum, sync, tac, tail, tee, test, touch, tr, true,
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| 109 | tsort, tty, uname, unexpand, uniq, unlink, uptime, users, vdir, wc, who,
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[c6cb3aa] | 110 | whoami and yes</seg></seglistitem>
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| 111 | </segmentedlist>
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[673b0d8] | 112 |
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[c6cb3aa] | 113 | <variablelist><title>Short descriptions</title>
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[673b0d8] | 114 |
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[b8a819f] | 115 | <varlistentry id="basename">
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| 116 | <term><command>basename</command></term>
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[c6cb3aa] | 117 | <listitem>
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[673b0d8] | 118 | <indexterm zone="ch-system-coreutils basename"><primary sortas="b-basename">basename</primary></indexterm>
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[ef13657] | 119 | <para>strips any path and a given suffix from a given file name.</para>
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[c6cb3aa] | 120 | </listitem>
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| 121 | </varlistentry>
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[673b0d8] | 122 |
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[b8a819f] | 123 | <varlistentry id="cat">
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| 124 | <term><command>cat</command></term>
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[c6cb3aa] | 125 | <listitem>
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[673b0d8] | 126 | <indexterm zone="ch-system-coreutils cat"><primary sortas="b-cat">cat</primary></indexterm>
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[c6cb3aa] | 127 | <para>concatenates files to standard output.</para>
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| 128 | </listitem>
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| 129 | </varlistentry>
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[673b0d8] | 130 |
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[b8a819f] | 131 | <varlistentry id="chgrp">
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| 132 | <term><command>chgrp</command></term>
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[c6cb3aa] | 133 | <listitem>
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[673b0d8] | 134 | <indexterm zone="ch-system-coreutils chgrp"><primary sortas="b-chgrp">chgrp</primary></indexterm>
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[ef13657] | 135 | <para>changes the group ownership of each given file to the given
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| 136 | group. The group can either be either given a name or a numeric
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| 137 | ID.</para>
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[c6cb3aa] | 138 | </listitem>
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| 139 | </varlistentry>
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| 140 |
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[b8a819f] | 141 | <varlistentry id="chmod">
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| 142 | <term><command>chmod</command></term>
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[c6cb3aa] | 143 | <listitem>
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[673b0d8] | 144 | <indexterm zone="ch-system-coreutils chmod"><primary sortas="b-chmod">chmod</primary></indexterm>
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[ef13657] | 145 | <para>changes the permissions of each file to the given mode. The mode
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| 146 | can be either a symbolic representation of the changes to make or an
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| 147 | octal number representing the new permissions.</para>
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[c6cb3aa] | 148 | </listitem>
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| 149 | </varlistentry>
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[673b0d8] | 150 |
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[b8a819f] | 151 | <varlistentry id="chown">
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| 152 | <term><command>chown</command></term>
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[c6cb3aa] | 153 | <listitem>
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[673b0d8] | 154 | <indexterm zone="ch-system-coreutils chown"><primary sortas="b-chown">chown</primary></indexterm>
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[c6cb3aa] | 155 | <para>changes the user and/or group ownership of
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[ef13657] | 156 | each given file to the given user/group pair.</para>
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[c6cb3aa] | 157 | </listitem>
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| 158 | </varlistentry>
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[673b0d8] | 159 |
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[b8a819f] | 160 | <varlistentry id="chroot">
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| 161 | <term><command>chroot</command></term>
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[c6cb3aa] | 162 | <listitem>
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[673b0d8] | 163 | <indexterm zone="ch-system-coreutils chroot"><primary sortas="b-chroot">chroot</primary></indexterm>
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[c6cb3aa] | 164 | <para>runs a given command with the specified directory as the
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[3c928f1] | 165 | <filename class="directory">/</filename> directory. The given command can be an interactive shell.
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[c6cb3aa] | 166 | On most systems only <emphasis>root</emphasis> can do this.</para>
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| 167 | </listitem>
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| 168 | </varlistentry>
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| 169 |
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[b8a819f] | 170 | <varlistentry id="cksum">
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| 171 | <term><command>cksum</command></term>
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[c6cb3aa] | 172 | <listitem>
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[673b0d8] | 173 | <indexterm zone="ch-system-coreutils cksum"><primary sortas="b-cksum">cksum</primary></indexterm>
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[ef13657] | 174 | <para>prints the Cyclic Redundancy Check (CRC) checksum and the byte
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[673b0d8] | 175 | counts of each specified file.</para>
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[c6cb3aa] | 176 | </listitem>
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| 177 | </varlistentry>
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[673b0d8] | 178 |
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[b8a819f] | 179 | <varlistentry id="comm">
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| 180 | <term><command>comm</command></term>
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[c6cb3aa] | 181 | <listitem>
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[673b0d8] | 182 | <indexterm zone="ch-system-coreutils comm"><primary sortas="b-comm">comm</primary></indexterm>
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[ef13657] | 183 | <para>compares two sorted files, outputting in three columns the lines
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| 184 | that are unique and the lines that are common.</para>
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[c6cb3aa] | 185 | </listitem>
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| 186 | </varlistentry>
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[673b0d8] | 187 |
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[b8a819f] | 188 | <varlistentry id="cp">
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| 189 | <term><command>cp</command></term>
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[c6cb3aa] | 190 | <listitem>
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[673b0d8] | 191 | <indexterm zone="ch-system-coreutils cp"><primary sortas="b-cp">cp</primary></indexterm>
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[c6cb3aa] | 192 | <para>copies files.</para>
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| 193 | </listitem>
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| 194 | </varlistentry>
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[673b0d8] | 195 |
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[b8a819f] | 196 | <varlistentry id="csplit">
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| 197 | <term><command>csplit</command></term>
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[c6cb3aa] | 198 | <listitem>
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[673b0d8] | 199 | <indexterm zone="ch-system-coreutils csplit"><primary sortas="b-csplit">csplit</primary></indexterm>
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[ef13657] | 200 | <para>splits a given file into several new files, separating them
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| 201 | according to given patterns or line numbers and outputting the byte
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| 202 | count of each new file.</para>
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[c6cb3aa] | 203 | </listitem>
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| 204 | </varlistentry>
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[673b0d8] | 205 |
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[b8a819f] | 206 | <varlistentry id="cut">
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| 207 | <term><command>cut</command></term>
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[c6cb3aa] | 208 | <listitem>
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[673b0d8] | 209 | <indexterm zone="ch-system-coreutils cut"><primary sortas="b-cut">cut</primary></indexterm>
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[ef13657] | 210 | <para>prints sections of lines, selecting the parts according to given
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| 211 | fields or positions.</para>
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[c6cb3aa] | 212 | </listitem>
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| 213 | </varlistentry>
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[673b0d8] | 214 |
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[b8a819f] | 215 | <varlistentry id="date">
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| 216 | <term><command>date</command></term>
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[c6cb3aa] | 217 | <listitem>
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[673b0d8] | 218 | <indexterm zone="ch-system-coreutils date"><primary sortas="b-date">date</primary></indexterm>
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[ef13657] | 219 | <para>displays the current time in the given format, or sets the
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| 220 | system date.</para>
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[c6cb3aa] | 221 | </listitem>
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| 222 | </varlistentry>
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[673b0d8] | 223 |
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[b8a819f] | 224 | <varlistentry id="dd">
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| 225 | <term><command>dd</command> </term>
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[c6cb3aa] | 226 | <listitem>
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[673b0d8] | 227 | <indexterm zone="ch-system-coreutils dd"><primary sortas="b-dd">dd</primary></indexterm>
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[ef13657] | 228 | <para>copies a file using the given block size and count, while
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| 229 | optionally performing conversions on it.</para>
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[c6cb3aa] | 230 | </listitem>
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| 231 | </varlistentry>
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[673b0d8] | 232 |
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[b8a819f] | 233 | <varlistentry id="df">
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| 234 | <term><command>df</command></term>
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[c6cb3aa] | 235 | <listitem>
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[673b0d8] | 236 | <indexterm zone="ch-system-coreutils df"><primary sortas="b-df">df</primary></indexterm>
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[ef13657] | 237 | <para>reports the amount of disk space available (and used) on all
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| 238 | mounted file systems, or only on the file systems holding the selected
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| 239 | files.</para>
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[c6cb3aa] | 240 | </listitem>
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| 241 | </varlistentry>
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[673b0d8] | 242 |
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[b8a819f] | 243 | <varlistentry id="dir">
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| 244 | <term><command>dir</command></term>
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[c6cb3aa] | 245 | <listitem>
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[673b0d8] | 246 | <indexterm zone="ch-system-coreutils dir"><primary sortas="b-dir">dir</primary></indexterm>
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[ef13657] | 247 | <para>lists the contents of each given directory. (the same as
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| 248 | the <command>ls</command> command).</para>
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[c6cb3aa] | 249 | </listitem>
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| 250 | </varlistentry>
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[673b0d8] | 251 |
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[b8a819f] | 252 | <varlistentry id="dircolors">
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| 253 | <term><command>dircolors</command></term>
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[c6cb3aa] | 254 | <listitem>
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[673b0d8] | 255 | <indexterm zone="ch-system-coreutils dircolors"><primary sortas="b-dircolors">dircolors</primary></indexterm>
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[ef13657] | 256 | <para>outputs commands to set the <emphasis>LS_COLOR</emphasis>
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| 257 | environment variable to change the color scheme used by
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| 258 | <command>ls</command>.</para>
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[c6cb3aa] | 259 | </listitem>
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| 260 | </varlistentry>
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[673b0d8] | 261 |
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[b8a819f] | 262 | <varlistentry id="dirname">
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| 263 | <term><command>dirname</command></term>
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[c6cb3aa] | 264 | <listitem>
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[673b0d8] | 265 | <indexterm zone="ch-system-coreutils dirname"><primary sortas="b-dirname">dirname</primary></indexterm>
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[ef13657] | 266 | <para>strips the non-directory suffix from a file name.</para>
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[c6cb3aa] | 267 | </listitem>
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| 268 | </varlistentry>
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[673b0d8] | 269 |
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[b8a819f] | 270 | <varlistentry id="du">
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| 271 | <term><command>du</command></term>
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[c6cb3aa] | 272 | <listitem>
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[673b0d8] | 273 | <indexterm zone="ch-system-coreutils du"><primary sortas="b-du">du</primary></indexterm>
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[ef13657] | 274 | <para>reports the amount of disk space used by the current directory,
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| 275 | by each of the given directories (including all subdirectories), or by
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| 276 | each of the given files.</para>
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[c6cb3aa] | 277 | </listitem>
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| 278 | </varlistentry>
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[673b0d8] | 279 |
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[b8a819f] | 280 | <varlistentry id="echo">
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| 281 | <term><command>echo</command></term>
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[c6cb3aa] | 282 | <listitem>
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[673b0d8] | 283 | <indexterm zone="ch-system-coreutils echo"><primary sortas="b-echo">echo</primary></indexterm>
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[c6cb3aa] | 284 | <para>displays the given strings.</para>
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| 285 | </listitem>
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| 286 | </varlistentry>
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[673b0d8] | 287 |
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[b8a819f] | 288 | <varlistentry id="env">
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| 289 | <term><command>env</command></term>
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[c6cb3aa] | 290 | <listitem>
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[673b0d8] | 291 | <indexterm zone="ch-system-coreutils env"><primary sortas="b-env">env</primary></indexterm>
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[c6cb3aa] | 292 | <para>runs a command in a modified environment.</para>
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| 293 | </listitem>
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| 294 | </varlistentry>
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[673b0d8] | 295 |
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[b8a819f] | 296 | <varlistentry id="expand">
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| 297 | <term><command>expand</command></term>
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[c6cb3aa] | 298 | <listitem>
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[673b0d8] | 299 | <indexterm zone="ch-system-coreutils expand"><primary sortas="b-expand">expand</primary></indexterm>
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[c6cb3aa] | 300 | <para>converts tabs to spaces.</para>
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| 301 | </listitem>
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| 302 | </varlistentry>
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[673b0d8] | 303 |
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[b8a819f] | 304 | <varlistentry id="expr">
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| 305 | <term><command>expr</command></term>
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[c6cb3aa] | 306 | <listitem>
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[673b0d8] | 307 | <indexterm zone="ch-system-coreutils expr"><primary sortas="b-expr">expr</primary></indexterm>
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[c6cb3aa] | 308 | <para>evaluates expressions.</para>
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| 309 | </listitem>
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| 310 | </varlistentry>
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[673b0d8] | 311 |
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[b8a819f] | 312 | <varlistentry id="factor">
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| 313 | <term><command>factor</command></term>
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[c6cb3aa] | 314 | <listitem>
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[673b0d8] | 315 | <indexterm zone="ch-system-coreutils factor"><primary sortas="b-factor">factor</primary></indexterm>
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[c6cb3aa] | 316 | <para>prints the prime factors of all specified integer numbers.</para>
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| 317 | </listitem>
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| 318 | </varlistentry>
|
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[673b0d8] | 319 |
|
---|
[b8a819f] | 320 | <varlistentry id="false">
|
---|
| 321 | <term><command>false</command></term>
|
---|
[c6cb3aa] | 322 | <listitem>
|
---|
[673b0d8] | 323 | <indexterm zone="ch-system-coreutils false"><primary sortas="b-false">false</primary></indexterm>
|
---|
[ef13657] | 324 | <para>does nothing, unsuccessfully. It always exits with a status code
|
---|
| 325 | indicating failure.</para>
|
---|
[c6cb3aa] | 326 | </listitem>
|
---|
| 327 | </varlistentry>
|
---|
[673b0d8] | 328 |
|
---|
[b8a819f] | 329 | <varlistentry id="mt">
|
---|
| 330 | <term><command>fmt</command></term>
|
---|
[c6cb3aa] | 331 | <listitem>
|
---|
[673b0d8] | 332 | <indexterm zone="ch-system-coreutils mt"><primary sortas="b-mt">mt</primary></indexterm>
|
---|
[c6cb3aa] | 333 | <para>reformats the paragraphs in the given files.</para>
|
---|
| 334 | </listitem>
|
---|
| 335 | </varlistentry>
|
---|
[673b0d8] | 336 |
|
---|
[b8a819f] | 337 | <varlistentry id="fold">
|
---|
| 338 | <term><command>fold</command></term>
|
---|
[c6cb3aa] | 339 | <listitem>
|
---|
[673b0d8] | 340 | <indexterm zone="ch-system-coreutils fold"><primary sortas="b-fold">fold</primary></indexterm>
|
---|
[c6cb3aa] | 341 | <para>wraps the lines in the given files.</para>
|
---|
| 342 | </listitem>
|
---|
| 343 | </varlistentry>
|
---|
[673b0d8] | 344 |
|
---|
[b8a819f] | 345 | <varlistentry id="groups-coreutils">
|
---|
| 346 | <term><command>groups</command></term>
|
---|
[c6cb3aa] | 347 | <listitem>
|
---|
[673b0d8] | 348 | <indexterm zone="ch-system-coreutils groups-coreutils"><primary sortas="b-groups-coreutils">groups</primary></indexterm>
|
---|
[c6cb3aa] | 349 | <para>reports a user's group memberships.</para>
|
---|
| 350 | </listitem>
|
---|
| 351 | </varlistentry>
|
---|
[673b0d8] | 352 |
|
---|
[b8a819f] | 353 | <varlistentry id="head">
|
---|
| 354 | <term><command>head</command></term>
|
---|
[c6cb3aa] | 355 | <listitem>
|
---|
[673b0d8] | 356 | <indexterm zone="ch-system-coreutils head"><primary sortas="b-head">head</primary></indexterm>
|
---|
[c6cb3aa] | 357 | <para>prints the first ten lines (or the given number of lines) of each given file.</para>
|
---|
| 358 | </listitem>
|
---|
| 359 | </varlistentry>
|
---|
[673b0d8] | 360 |
|
---|
[b8a819f] | 361 | <varlistentry id="hostid">
|
---|
| 362 | <term><command>hostid</command></term>
|
---|
[c6cb3aa] | 363 | <listitem>
|
---|
[673b0d8] | 364 | <indexterm zone="ch-system-coreutils hostid"><primary sortas="b-hostid">hostid</primary></indexterm>
|
---|
[c6cb3aa] | 365 | <para>reports the numeric identifier (in hexadecimal) of the host.</para>
|
---|
| 366 | </listitem>
|
---|
| 367 | </varlistentry>
|
---|
[673b0d8] | 368 |
|
---|
[6aaa1b0] | 369 | <varlistentry id="hostname">
|
---|
[b8a819f] | 370 | <term><command>hostname</command></term>
|
---|
[c6cb3aa] | 371 | <listitem>
|
---|
[6aaa1b0] | 372 | <indexterm zone="ch-system-coreutils hostname"><primary sortas="b-hostname">hostname</primary></indexterm>
|
---|
[c6cb3aa] | 373 | <para>reports or sets the name of the host.</para>
|
---|
| 374 | </listitem>
|
---|
| 375 | </varlistentry>
|
---|
[673b0d8] | 376 |
|
---|
[b8a819f] | 377 | <varlistentry id="id">
|
---|
| 378 | <term><command>id</command></term>
|
---|
[c6cb3aa] | 379 | <listitem>
|
---|
[673b0d8] | 380 | <indexterm zone="ch-system-coreutils id"><primary sortas="b-id">id</primary></indexterm>
|
---|
[c6cb3aa] | 381 | <para>reports the effective user ID, group ID, and
|
---|
[ef13657] | 382 | group memberships of the current user or specified user.</para>
|
---|
[c6cb3aa] | 383 | </listitem>
|
---|
| 384 | </varlistentry>
|
---|
[673b0d8] | 385 |
|
---|
[b8a819f] | 386 | <varlistentry id="install">
|
---|
| 387 | <term><command>install</command> </term>
|
---|
[c6cb3aa] | 388 | <listitem>
|
---|
[673b0d8] | 389 | <indexterm zone="ch-system-coreutils install"><primary sortas="b-install">install</primary></indexterm>
|
---|
[c6cb3aa] | 390 | <para>copies files while setting their
|
---|
[673b0d8] | 391 | permission modes and, if possible, their owner and group.</para>
|
---|
[c6cb3aa] | 392 | </listitem>
|
---|
| 393 | </varlistentry>
|
---|
[673b0d8] | 394 |
|
---|
[b8a819f] | 395 | <varlistentry id="join">
|
---|
| 396 | <term><command>join</command></term>
|
---|
[c6cb3aa] | 397 | <listitem>
|
---|
[673b0d8] | 398 | <indexterm zone="ch-system-coreutils join"><primary sortas="b-join">join</primary></indexterm>
|
---|
[ef13657] | 399 | <para>joins the lines that have identical join fields from two
|
---|
| 400 | separate files.</para>
|
---|
[c6cb3aa] | 401 | </listitem>
|
---|
| 402 | </varlistentry>
|
---|
[673b0d8] | 403 |
|
---|
[b8a819f] | 404 | <varlistentry id="link">
|
---|
| 405 | <term><command>link</command></term>
|
---|
[c6cb3aa] | 406 | <listitem>
|
---|
[673b0d8] | 407 | <indexterm zone="ch-system-coreutils link"><primary sortas="b-link">link</primary></indexterm>
|
---|
[ef13657] | 408 | <para>creates a hard link with the given name to a file.</para>
|
---|
[c6cb3aa] | 409 | </listitem>
|
---|
| 410 | </varlistentry>
|
---|
[673b0d8] | 411 |
|
---|
[b8a819f] | 412 | <varlistentry id="ln">
|
---|
| 413 | <term><command>ln</command></term>
|
---|
[c6cb3aa] | 414 | <listitem>
|
---|
[673b0d8] | 415 | <indexterm zone="ch-system-coreutils ln"><primary sortas="b-ln">ln</primary></indexterm>
|
---|
[ef13657] | 416 | <para>makes hard links or soft (symbolic) links between files.</para>
|
---|
[c6cb3aa] | 417 | </listitem>
|
---|
| 418 | </varlistentry>
|
---|
[673b0d8] | 419 |
|
---|
[b8a819f] | 420 | <varlistentry id="logname">
|
---|
| 421 | <term><command>logname</command></term>
|
---|
[c6cb3aa] | 422 | <listitem>
|
---|
[673b0d8] | 423 | <indexterm zone="ch-system-coreutils logname"><primary sortas="b-logname">logname</primary></indexterm>
|
---|
[c6cb3aa] | 424 | <para>reports the current user's login name.</para>
|
---|
| 425 | </listitem>
|
---|
| 426 | </varlistentry>
|
---|
[673b0d8] | 427 |
|
---|
[b8a819f] | 428 | <varlistentry id="ls">
|
---|
| 429 | <term><command>ls</command></term>
|
---|
[c6cb3aa] | 430 | <listitem>
|
---|
[673b0d8] | 431 | <indexterm zone="ch-system-coreutils ls"><primary sortas="b-ls">ls</primary></indexterm>
|
---|
[ef13657] | 432 | <para>lists the contents of each given directory.</para>
|
---|
[c6cb3aa] | 433 | </listitem>
|
---|
| 434 | </varlistentry>
|
---|
[673b0d8] | 435 |
|
---|
[b8a819f] | 436 | <varlistentry id="md5sum">
|
---|
| 437 | <term><command>md5sum</command></term>
|
---|
[c6cb3aa] | 438 | <listitem>
|
---|
[673b0d8] | 439 | <indexterm zone="ch-system-coreutils md5sum"><primary sortas="b-md5sum">md5sum</primary></indexterm>
|
---|
[ef13657] | 440 | <para>reports or checks Message Digest 5 (MD5) checksums.</para>
|
---|
[c6cb3aa] | 441 | </listitem>
|
---|
| 442 | </varlistentry>
|
---|
[673b0d8] | 443 |
|
---|
[b8a819f] | 444 | <varlistentry id="mkdir">
|
---|
| 445 | <term><command>mkdir</command></term>
|
---|
[c6cb3aa] | 446 | <listitem>
|
---|
[673b0d8] | 447 | <indexterm zone="ch-system-coreutils mkdir"><primary sortas="b-mkdir">mkdir</primary></indexterm>
|
---|
[c6cb3aa] | 448 | <para>creates directories with the given names.</para>
|
---|
| 449 | </listitem>
|
---|
| 450 | </varlistentry>
|
---|
[673b0d8] | 451 |
|
---|
[b8a819f] | 452 | <varlistentry id="mkfifo">
|
---|
| 453 | <term><command>mkfifo</command></term>
|
---|
[c6cb3aa] | 454 | <listitem>
|
---|
[673b0d8] | 455 | <indexterm zone="ch-system-coreutils mkfifo"><primary sortas="b-mkfifo">mkfifo</primary></indexterm>
|
---|
[ef13657] | 456 | <para>creates First-In, First-Outs (FIFOs), a <quote>named
|
---|
| 457 | pipe</quote> in UNIX parlance, with the given names.</para>
|
---|
[c6cb3aa] | 458 | </listitem>
|
---|
| 459 | </varlistentry>
|
---|
| 460 |
|
---|
[b8a819f] | 461 | <varlistentry id="mknod">
|
---|
| 462 | <term><command>mknod</command></term>
|
---|
[c6cb3aa] | 463 | <listitem>
|
---|
[673b0d8] | 464 | <indexterm zone="ch-system-coreutils mknod"><primary sortas="b-mknod">mknod</primary></indexterm>
|
---|
[ef13657] | 465 | <para>creates device nodes with the given names. A device node is a
|
---|
| 466 | character special file, a block special file, or a FIFO.</para>
|
---|
[c6cb3aa] | 467 | </listitem>
|
---|
| 468 | </varlistentry>
|
---|
[673b0d8] | 469 |
|
---|
[b8a819f] | 470 | <varlistentry id="mv">
|
---|
| 471 | <term><command>mv</command></term>
|
---|
[c6cb3aa] | 472 | <listitem>
|
---|
[673b0d8] | 473 | <indexterm zone="ch-system-coreutils mv"><primary sortas="b-mv">mv</primary></indexterm>
|
---|
[c6cb3aa] | 474 | <para>moves or renames files or directories.</para>
|
---|
| 475 | </listitem>
|
---|
| 476 | </varlistentry>
|
---|
[673b0d8] | 477 |
|
---|
[b8a819f] | 478 | <varlistentry id="nice">
|
---|
| 479 | <term><command>nice</command></term>
|
---|
[c6cb3aa] | 480 | <listitem>
|
---|
[673b0d8] | 481 | <indexterm zone="ch-system-coreutils nice"><primary sortas="b-nice">nice</primary></indexterm>
|
---|
[c6cb3aa] | 482 | <para>runs a program with modified scheduling priority.</para>
|
---|
| 483 | </listitem>
|
---|
| 484 | </varlistentry>
|
---|
[673b0d8] | 485 |
|
---|
[b8a819f] | 486 | <varlistentry id="nl">
|
---|
| 487 | <term><command>nl</command></term>
|
---|
[c6cb3aa] | 488 | <listitem>
|
---|
[673b0d8] | 489 | <indexterm zone="ch-system-coreutils nl"><primary sortas="b-nl">nl</primary></indexterm>
|
---|
[c6cb3aa] | 490 | <para>numbers the lines from the given files.</para>
|
---|
| 491 | </listitem>
|
---|
| 492 | </varlistentry>
|
---|
[673b0d8] | 493 |
|
---|
[b8a819f] | 494 | <varlistentry id="nohup">
|
---|
| 495 | <term><command>nohup</command></term>
|
---|
[c6cb3aa] | 496 | <listitem>
|
---|
[673b0d8] | 497 | <indexterm zone="ch-system-coreutils nohup"><primary sortas="b-nohup">nohup</primary></indexterm>
|
---|
[ef13657] | 498 | <para>runs a command immune to hangups, with its output redirected to
|
---|
| 499 | a log file.</para>
|
---|
[c6cb3aa] | 500 | </listitem>
|
---|
| 501 | </varlistentry>
|
---|
[673b0d8] | 502 |
|
---|
[b8a819f] | 503 | <varlistentry id="od">
|
---|
| 504 | <term><command>od</command></term>
|
---|
[c6cb3aa] | 505 | <listitem>
|
---|
[673b0d8] | 506 | <indexterm zone="ch-system-coreutils od"><primary sortas="b-od">od</primary></indexterm>
|
---|
[c6cb3aa] | 507 | <para>dumps files in octal and other formats.</para>
|
---|
| 508 | </listitem>
|
---|
| 509 | </varlistentry>
|
---|
[673b0d8] | 510 |
|
---|
[b8a819f] | 511 | <varlistentry id="paste">
|
---|
| 512 | <term><command>paste</command></term>
|
---|
[c6cb3aa] | 513 | <listitem>
|
---|
[673b0d8] | 514 | <indexterm zone="ch-system-coreutils paste"><primary sortas="b-paste">paste</primary></indexterm>
|
---|
[ef13657] | 515 | <para>merges the given files, joining sequentially corresponding lines
|
---|
| 516 | side by side, separated by tab characters.</para>
|
---|
[c6cb3aa] | 517 | </listitem>
|
---|
| 518 | </varlistentry>
|
---|
[673b0d8] | 519 |
|
---|
[b8a819f] | 520 | <varlistentry id="pathchk">
|
---|
| 521 | <term><command>pathchk</command></term>
|
---|
[c6cb3aa] | 522 | <listitem>
|
---|
[673b0d8] | 523 | <indexterm zone="ch-system-coreutils pathchk"><primary sortas="b-pathchk">pathchk</primary></indexterm>
|
---|
[ef13657] | 524 | <para>checks if file names are valid or portable.</para>
|
---|
[c6cb3aa] | 525 | </listitem>
|
---|
| 526 | </varlistentry>
|
---|
[673b0d8] | 527 |
|
---|
[b8a819f] | 528 | <varlistentry id="pinky">
|
---|
| 529 | <term><command>pinky</command></term>
|
---|
[c6cb3aa] | 530 | <listitem>
|
---|
[673b0d8] | 531 | <indexterm zone="ch-system-coreutils pinky"><primary sortas="b-pinky">pinky</primary></indexterm>
|
---|
[ef13657] | 532 | <para>is a lightweight finger client. It reports some information about the given users.</para>
|
---|
[c6cb3aa] | 533 | </listitem>
|
---|
| 534 | </varlistentry>
|
---|
[673b0d8] | 535 |
|
---|
[b8a819f] | 536 | <varlistentry id="pr">
|
---|
| 537 | <term><command>pr</command></term>
|
---|
[c6cb3aa] | 538 | <listitem>
|
---|
[673b0d8] | 539 | <indexterm zone="ch-system-coreutils pr"><primary sortas="b-pr">pr</primary></indexterm>
|
---|
[c6cb3aa] | 540 | <para>paginates and columnates files for printing.</para>
|
---|
| 541 | </listitem>
|
---|
| 542 | </varlistentry>
|
---|
[673b0d8] | 543 |
|
---|
[b8a819f] | 544 | <varlistentry id="printenv">
|
---|
| 545 | <term><command>printenv</command></term>
|
---|
[c6cb3aa] | 546 | <listitem>
|
---|
[673b0d8] | 547 | <indexterm zone="ch-system-coreutils printenv"><primary sortas="b-printenv">printenv</primary></indexterm>
|
---|
[c6cb3aa] | 548 | <para>prints the environment.</para>
|
---|
| 549 | </listitem>
|
---|
| 550 | </varlistentry>
|
---|
[673b0d8] | 551 |
|
---|
[b8a819f] | 552 | <varlistentry id="printf">
|
---|
| 553 | <term><command>printf</command></term>
|
---|
[c6cb3aa] | 554 | <listitem>
|
---|
[673b0d8] | 555 | <indexterm zone="ch-system-coreutils printf"><primary sortas="b-printf">printf</primary></indexterm>
|
---|
[ef13657] | 556 | <para>prints the given arguments according to the given format, much
|
---|
| 557 | like the C printf function.</para>
|
---|
[c6cb3aa] | 558 | </listitem>
|
---|
| 559 | </varlistentry>
|
---|
[673b0d8] | 560 |
|
---|
[b8a819f] | 561 | <varlistentry id="ptx">
|
---|
| 562 | <term><command>ptx</command></term>
|
---|
[c6cb3aa] | 563 | <listitem>
|
---|
[673b0d8] | 564 | <indexterm zone="ch-system-coreutils ptx"><primary sortas="b-ptx">ptx</primary></indexterm>
|
---|
[ef13657] | 565 | <para>produces a permuted index from the contents of the given files,
|
---|
| 566 | with each keyword in its context.</para>
|
---|
[c6cb3aa] | 567 | </listitem>
|
---|
| 568 | </varlistentry>
|
---|
[673b0d8] | 569 |
|
---|
[b8a819f] | 570 | <varlistentry id="pwd">
|
---|
| 571 | <term><command>pwd</command></term>
|
---|
[c6cb3aa] | 572 | <listitem>
|
---|
[673b0d8] | 573 | <indexterm zone="ch-system-coreutils pwd"><primary sortas="b-pwd">pwd</primary></indexterm>
|
---|
[ef13657] | 574 | <para>reports the name of the current working directory.</para>
|
---|
[c6cb3aa] | 575 | </listitem>
|
---|
| 576 | </varlistentry>
|
---|
[673b0d8] | 577 |
|
---|
[b8a819f] | 578 | <varlistentry id="readlink">
|
---|
| 579 | <term><command>readlink</command></term>
|
---|
[c6cb3aa] | 580 | <listitem>
|
---|
[673b0d8] | 581 | <indexterm zone="ch-system-coreutils readlink"><primary sortas="b-readlink">readlink</primary></indexterm>
|
---|
[c6cb3aa] | 582 | <para>reports the value of the given symbolic link.</para>
|
---|
| 583 | </listitem>
|
---|
| 584 | </varlistentry>
|
---|
[673b0d8] | 585 |
|
---|
[b8a819f] | 586 | <varlistentry id="rm">
|
---|
| 587 | <term><command>rm</command></term>
|
---|
[c6cb3aa] | 588 | <listitem>
|
---|
[673b0d8] | 589 | <indexterm zone="ch-system-coreutils rm"><primary sortas="b-rm">rm</primary></indexterm>
|
---|
[c6cb3aa] | 590 | <para>removes files or directories.</para>
|
---|
| 591 | </listitem>
|
---|
| 592 | </varlistentry>
|
---|
[673b0d8] | 593 |
|
---|
[b8a819f] | 594 | <varlistentry id="rmdir">
|
---|
| 595 | <term><command>rmdir</command></term>
|
---|
[c6cb3aa] | 596 | <listitem>
|
---|
[673b0d8] | 597 | <indexterm zone="ch-system-coreutils rmdir"><primary sortas="b-rmdir">rmdir</primary></indexterm>
|
---|
[ef13657] | 598 | <para>removes directories if they are empty.</para>
|
---|
[c6cb3aa] | 599 | </listitem>
|
---|
| 600 | </varlistentry>
|
---|
[673b0d8] | 601 |
|
---|
[b8a819f] | 602 | <varlistentry id="seq">
|
---|
| 603 | <term><command>seq</command></term>
|
---|
[c6cb3aa] | 604 | <listitem>
|
---|
[673b0d8] | 605 | <indexterm zone="ch-system-coreutils seq"><primary sortas="b-seq">seq</primary></indexterm>
|
---|
[ef13657] | 606 | <para>prints a sequence of numbers within a given range and with a
|
---|
| 607 | given increment.</para>
|
---|
[c6cb3aa] | 608 | </listitem>
|
---|
| 609 | </varlistentry>
|
---|
[673b0d8] | 610 |
|
---|
[b8a819f] | 611 | <varlistentry id="sha1sum">
|
---|
| 612 | <term><command>sha1sum</command></term>
|
---|
[c6cb3aa] | 613 | <listitem>
|
---|
[673b0d8] | 614 | <indexterm zone="ch-system-coreutils sha1sum"><primary sortas="b-sha1sum">sha1sum</primary></indexterm>
|
---|
[ef13657] | 615 | <para>prints or checks 160-bit Secure Hash Algorithm 1 (SHA1) checksums.</para>
|
---|
[c6cb3aa] | 616 | </listitem>
|
---|
| 617 | </varlistentry>
|
---|
[673b0d8] | 618 |
|
---|
[b8a819f] | 619 | <varlistentry id="shred">
|
---|
| 620 | <term><command>shred</command></term>
|
---|
[c6cb3aa] | 621 | <listitem>
|
---|
[673b0d8] | 622 | <indexterm zone="ch-system-coreutils shred"><primary sortas="b-shred">shred</primary></indexterm>
|
---|
[ef13657] | 623 | <para>overwrites the given files repeatedly with complex patterns,
|
---|
| 624 | making it difficult to recover the data.</para>
|
---|
[c6cb3aa] | 625 | </listitem>
|
---|
| 626 | </varlistentry>
|
---|
[673b0d8] | 627 |
|
---|
[b8a819f] | 628 | <varlistentry id="sleep">
|
---|
| 629 | <term><command>sleep</command></term>
|
---|
[c6cb3aa] | 630 | <listitem>
|
---|
[673b0d8] | 631 | <indexterm zone="ch-system-coreutils sleep"><primary sortas="b-sleep">sleep</primary></indexterm>
|
---|
[c6cb3aa] | 632 | <para>pauses for the given amount of time.</para>
|
---|
| 633 | </listitem>
|
---|
| 634 | </varlistentry>
|
---|
[673b0d8] | 635 |
|
---|
[b8a819f] | 636 | <varlistentry id="sort">
|
---|
| 637 | <term><command>sort</command></term>
|
---|
[c6cb3aa] | 638 | <listitem>
|
---|
[673b0d8] | 639 | <indexterm zone="ch-system-coreutils sort"><primary sortas="b-sort">sort</primary></indexterm>
|
---|
[c6cb3aa] | 640 | <para>sorts the lines from the given files.</para>
|
---|
| 641 | </listitem>
|
---|
| 642 | </varlistentry>
|
---|
[673b0d8] | 643 |
|
---|
[b8a819f] | 644 | <varlistentry id="split">
|
---|
| 645 | <term><command>split</command></term>
|
---|
[c6cb3aa] | 646 | <listitem>
|
---|
[673b0d8] | 647 | <indexterm zone="ch-system-coreutils split"><primary sortas="b-split">split</primary></indexterm>
|
---|
[ef13657] | 648 | <para>splits the given file into pieces, by size or by number of lines.</para>
|
---|
[c6cb3aa] | 649 | </listitem>
|
---|
| 650 | </varlistentry>
|
---|
[673b0d8] | 651 |
|
---|
[b8a819f] | 652 | <varlistentry id="stty">
|
---|
| 653 | <term><command>stty</command></term>
|
---|
[c6cb3aa] | 654 | <listitem>
|
---|
[673b0d8] | 655 | <indexterm zone="ch-system-coreutils stty"><primary sortas="b-stty">stty</primary></indexterm>
|
---|
[c6cb3aa] | 656 | <para>sets or reports terminal line settings.</para>
|
---|
| 657 | </listitem>
|
---|
| 658 | </varlistentry>
|
---|
[673b0d8] | 659 |
|
---|
[b8a819f] | 660 | <varlistentry id="su">
|
---|
| 661 | <term><command>su</command></term>
|
---|
[c6cb3aa] | 662 | <listitem>
|
---|
[673b0d8] | 663 | <indexterm zone="ch-system-coreutils su"><primary sortas="b-su">su</primary></indexterm>
|
---|
[c6cb3aa] | 664 | <para>runs a shell with substitute user and group IDs.</para>
|
---|
| 665 | </listitem>
|
---|
| 666 | </varlistentry>
|
---|
[673b0d8] | 667 |
|
---|
[b8a819f] | 668 | <varlistentry id="sum">
|
---|
| 669 | <term><command>sum</command></term>
|
---|
[c6cb3aa] | 670 | <listitem>
|
---|
[673b0d8] | 671 | <indexterm zone="ch-system-coreutils sum"><primary sortas="b-sum">sum</primary></indexterm>
|
---|
[c6cb3aa] | 672 | <para>prints checksum and block counts for each given file.</para>
|
---|
| 673 | </listitem>
|
---|
| 674 | </varlistentry>
|
---|
[673b0d8] | 675 |
|
---|
[b8a819f] | 676 | <varlistentry id="sync">
|
---|
| 677 | <term><command>sync</command></term>
|
---|
[c6cb3aa] | 678 | <listitem>
|
---|
[673b0d8] | 679 | <indexterm zone="ch-system-coreutils sync"><primary sortas="b-sync">sync</primary></indexterm>
|
---|
[ef13657] | 680 | <para>flushes file system buffers. It forces changed blocks to disk
|
---|
| 681 | and updates the super block.</para>
|
---|
[c6cb3aa] | 682 | </listitem>
|
---|
| 683 | </varlistentry>
|
---|
[673b0d8] | 684 |
|
---|
[b8a819f] | 685 | <varlistentry id="tac">
|
---|
| 686 | <term><command>tac</command></term>
|
---|
[c6cb3aa] | 687 | <listitem>
|
---|
[673b0d8] | 688 | <indexterm zone="ch-system-coreutils tac"><primary sortas="b-tac">tac</primary></indexterm>
|
---|
[c6cb3aa] | 689 | <para>concatenates the given files in reverse.</para>
|
---|
| 690 | </listitem>
|
---|
| 691 | </varlistentry>
|
---|
[673b0d8] | 692 |
|
---|
[b8a819f] | 693 | <varlistentry id="tail">
|
---|
| 694 | <term><command>tail</command></term>
|
---|
[c6cb3aa] | 695 | <listitem>
|
---|
[673b0d8] | 696 | <indexterm zone="ch-system-coreutils tail"><primary sortas="b-tail">tail</primary></indexterm>
|
---|
[ef13657] | 697 | <para>prints the last ten lines (or the given number of lines) of each
|
---|
| 698 | given file.</para>
|
---|
[c6cb3aa] | 699 | </listitem>
|
---|
| 700 | </varlistentry>
|
---|
[673b0d8] | 701 |
|
---|
[b8a819f] | 702 | <varlistentry id="tee">
|
---|
| 703 | <term><command>tee</command></term>
|
---|
[c6cb3aa] | 704 | <listitem>
|
---|
[673b0d8] | 705 | <indexterm zone="ch-system-coreutils tee"><primary sortas="b-tee">tee</primary></indexterm>
|
---|
[ef13657] | 706 | <para>reads from standard input while writing both to standard output
|
---|
| 707 | and to the given files.</para>
|
---|
[c6cb3aa] | 708 | </listitem>
|
---|
| 709 | </varlistentry>
|
---|
[673b0d8] | 710 |
|
---|
[b8a819f] | 711 | <varlistentry id="test">
|
---|
| 712 | <term><command>test</command></term>
|
---|
[c6cb3aa] | 713 | <listitem>
|
---|
[673b0d8] | 714 | <indexterm zone="ch-system-coreutils test"><primary sortas="b-test">test</primary></indexterm>
|
---|
[c6cb3aa] | 715 | <para>compares values and checks file types.</para>
|
---|
| 716 | </listitem>
|
---|
| 717 | </varlistentry>
|
---|
[673b0d8] | 718 |
|
---|
[b8a819f] | 719 | <varlistentry id="touch">
|
---|
| 720 | <term><command>touch</command></term>
|
---|
[c6cb3aa] | 721 | <listitem>
|
---|
[673b0d8] | 722 | <indexterm zone="ch-system-coreutils touch"><primary sortas="b-touch">touch</primary></indexterm>
|
---|
[ef13657] | 723 | <para>changes file timestamps, setting the access and modification
|
---|
| 724 | times of the given files to the current time. Files that do not exist
|
---|
| 725 | are created with zero length.</para>
|
---|
[c6cb3aa] | 726 | </listitem>
|
---|
| 727 | </varlistentry>
|
---|
[673b0d8] | 728 |
|
---|
[b8a819f] | 729 | <varlistentry id="tr">
|
---|
| 730 | <term><command>tr</command></term>
|
---|
[c6cb3aa] | 731 | <listitem>
|
---|
[673b0d8] | 732 | <indexterm zone="ch-system-coreutils tr"><primary sortas="b-tr">tr</primary></indexterm>
|
---|
[ef13657] | 733 | <para>translates, squeezes, and deletes the given characters from
|
---|
| 734 | standard input.</para>
|
---|
[c6cb3aa] | 735 | </listitem>
|
---|
| 736 | </varlistentry>
|
---|
[673b0d8] | 737 |
|
---|
[b8a819f] | 738 | <varlistentry id="true">
|
---|
| 739 | <term><command>true</command></term>
|
---|
[c6cb3aa] | 740 | <listitem>
|
---|
[673b0d8] | 741 | <indexterm zone="ch-system-coreutils true"><primary sortas="b-true">true</primary></indexterm>
|
---|
[ef13657] | 742 | <para>does nothing, successfully. It always exits with a status code
|
---|
| 743 | indicating success.</para>
|
---|
[c6cb3aa] | 744 | </listitem>
|
---|
| 745 | </varlistentry>
|
---|
[673b0d8] | 746 |
|
---|
[b8a819f] | 747 | <varlistentry id="tsort">
|
---|
| 748 | <term><command>tsort</command></term>
|
---|
[c6cb3aa] | 749 | <listitem>
|
---|
[673b0d8] | 750 | <indexterm zone="ch-system-coreutils tsort"><primary sortas="b-tsort">tsort</primary></indexterm>
|
---|
[ef13657] | 751 | <para>performs a topological sort. It writes a totally ordered list
|
---|
| 752 | according to the partial ordering in a given file.</para>
|
---|
[c6cb3aa] | 753 | </listitem>
|
---|
| 754 | </varlistentry>
|
---|
[673b0d8] | 755 |
|
---|
[b8a819f] | 756 | <varlistentry id="tty">
|
---|
| 757 | <term><command>tty</command></term>
|
---|
[c6cb3aa] | 758 | <listitem>
|
---|
[673b0d8] | 759 | <indexterm zone="ch-system-coreutils tty"><primary sortas="b-tty">tty</primary></indexterm>
|
---|
[ef13657] | 760 | <para>reports the file name of the terminal connected to standard
|
---|
| 761 | input.</para>
|
---|
[c6cb3aa] | 762 | </listitem>
|
---|
| 763 | </varlistentry>
|
---|
[673b0d8] | 764 |
|
---|
[b8a819f] | 765 | <varlistentry id="uname">
|
---|
| 766 | <term><command>uname</command></term>
|
---|
[c6cb3aa] | 767 | <listitem>
|
---|
[673b0d8] | 768 | <indexterm zone="ch-system-coreutils uname"><primary sortas="b-uname">uname</primary></indexterm>
|
---|
[c6cb3aa] | 769 | <para>reports system information.</para>
|
---|
| 770 | </listitem>
|
---|
| 771 | </varlistentry>
|
---|
[673b0d8] | 772 |
|
---|
[b8a819f] | 773 | <varlistentry id="unexpand">
|
---|
| 774 | <term><command>unexpand</command></term>
|
---|
[c6cb3aa] | 775 | <listitem>
|
---|
[673b0d8] | 776 | <indexterm zone="ch-system-coreutils unexpand"><primary sortas="b-unexpand">unexpand</primary></indexterm>
|
---|
[c6cb3aa] | 777 | <para>converts spaces to tabs.</para>
|
---|
| 778 | </listitem>
|
---|
| 779 | </varlistentry>
|
---|
[673b0d8] | 780 |
|
---|
[b8a819f] | 781 | <varlistentry id="uniq">
|
---|
| 782 | <term><command>uniq</command></term>
|
---|
[c6cb3aa] | 783 | <listitem>
|
---|
[673b0d8] | 784 | <indexterm zone="ch-system-coreutils uniq"><primary sortas="b-uniq">uniq</primary></indexterm>
|
---|
[c6cb3aa] | 785 | <para>discards all but one of successive identical lines.</para>
|
---|
| 786 | </listitem>
|
---|
| 787 | </varlistentry>
|
---|
[673b0d8] | 788 |
|
---|
[b8a819f] | 789 | <varlistentry id="unlink">
|
---|
| 790 | <term><command>unlink</command></term>
|
---|
[c6cb3aa] | 791 | <listitem>
|
---|
[673b0d8] | 792 | <indexterm zone="ch-system-coreutils unlink"><primary sortas="b-unlink">unlink</primary></indexterm>
|
---|
[c6cb3aa] | 793 | <para>removes the given file.</para>
|
---|
| 794 | </listitem>
|
---|
| 795 | </varlistentry>
|
---|
[673b0d8] | 796 |
|
---|
[b8a819f] | 797 | <varlistentry id="uptime-coreutils">
|
---|
| 798 | <term><command>uptime</command></term>
|
---|
[c6cb3aa] | 799 | <listitem>
|
---|
[673b0d8] | 800 | <indexterm zone="ch-system-coreutils uptime-coreutils"><primary sortas="b-uptime-coreutils">uptime</primary></indexterm>
|
---|
[ef13657] | 801 | <para>reports how long the system has been running, how many users are
|
---|
| 802 | logged on, and the system load averages.</para>
|
---|
[c6cb3aa] | 803 | </listitem>
|
---|
| 804 | </varlistentry>
|
---|
[673b0d8] | 805 |
|
---|
[b8a819f] | 806 | <varlistentry id="users">
|
---|
| 807 | <term><command>users</command></term>
|
---|
[c6cb3aa] | 808 | <listitem>
|
---|
[673b0d8] | 809 | <indexterm zone="ch-system-coreutils users"><primary sortas="b-users">users</primary></indexterm>
|
---|
[c6cb3aa] | 810 | <para>reports the names of the users currently logged on.</para>
|
---|
| 811 | </listitem>
|
---|
| 812 | </varlistentry>
|
---|
[673b0d8] | 813 |
|
---|
[b8a819f] | 814 | <varlistentry id="vdir">
|
---|
| 815 | <term><command>vdir</command></term>
|
---|
[c6cb3aa] | 816 | <listitem>
|
---|
[673b0d8] | 817 | <indexterm zone="ch-system-coreutils vdir"><primary sortas="b-vdir">vdir</primary></indexterm>
|
---|
[3c928f1] | 818 | <para>is the same as <command>ls -l</command>.</para>
|
---|
[c6cb3aa] | 819 | </listitem>
|
---|
| 820 | </varlistentry>
|
---|
[673b0d8] | 821 |
|
---|
[b8a819f] | 822 | <varlistentry id="wc">
|
---|
| 823 | <term><command>wc</command></term>
|
---|
[c6cb3aa] | 824 | <listitem>
|
---|
[673b0d8] | 825 | <indexterm zone="ch-system-coreutils wc"><primary sortas="b-wc">wc</primary></indexterm>
|
---|
[ef13657] | 826 | <para>reports the number of lines, words, and bytes for each given
|
---|
| 827 | file, as well as a total line when more than one file is given.</para>
|
---|
[c6cb3aa] | 828 | </listitem>
|
---|
| 829 | </varlistentry>
|
---|
[673b0d8] | 830 |
|
---|
[b8a819f] | 831 | <varlistentry id="who">
|
---|
| 832 | <term><command>who</command></term>
|
---|
[c6cb3aa] | 833 | <listitem>
|
---|
[673b0d8] | 834 | <indexterm zone="ch-system-coreutils who"><primary sortas="b-who">who</primary></indexterm>
|
---|
[c6cb3aa] | 835 | <para>reports who is logged on.</para>
|
---|
| 836 | </listitem>
|
---|
| 837 | </varlistentry>
|
---|
[673b0d8] | 838 |
|
---|
[b8a819f] | 839 | <varlistentry id="whoami">
|
---|
| 840 | <term><command>whoami</command></term>
|
---|
[c6cb3aa] | 841 | <listitem>
|
---|
[673b0d8] | 842 | <indexterm zone="ch-system-coreutils whoami"><primary sortas="b-whoami">whoami</primary></indexterm>
|
---|
[c6cb3aa] | 843 | <para>reports the user name associated with the current effective user ID.</para>
|
---|
| 844 | </listitem>
|
---|
| 845 | </varlistentry>
|
---|
[673b0d8] | 846 |
|
---|
[b8a819f] | 847 | <varlistentry id="yes">
|
---|
| 848 | <term><command>yes</command></term>
|
---|
[c6cb3aa] | 849 | <listitem>
|
---|
[673b0d8] | 850 | <indexterm zone="ch-system-coreutils yes"><primary sortas="b-yes">yes</primary></indexterm>
|
---|
[ef13657] | 851 | <para>outputs <quote>y</quote>, or a given string, repeatedly until killed.</para>
|
---|
[c6cb3aa] | 852 | </listitem>
|
---|
| 853 | </varlistentry>
|
---|
| 854 | </variablelist>
|
---|
[673b0d8] | 855 |
|
---|
| 856 | </sect2>
|
---|
| 857 |
|
---|
| 858 | </sect1>
|
---|
[ef13657] | 859 |
|
---|