[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-util-linux" xreflabel="Util-linux" role="wrap">
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[673b0d8] | 7 | <title>Util-linux-&util-linux-version;</title>
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| 8 | <?dbhtml filename="util-linux.html"?>
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| 9 |
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| 10 | <indexterm zone="ch-system-util-linux"><primary sortas="a-Util-linux">Util-linux</primary></indexterm>
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| 11 |
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[a001133] | 12 | <sect2 role="package"><title/>
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[673b0d8] | 13 | <para>The Util-linux package contains miscellaneous utility programs. Among
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| 14 | them are utilities for handling file systems, consoles, partitions, and
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| 15 | messages.</para>
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| 16 |
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[a001133] | 17 | <segmentedlist>
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| 18 | <segtitle>&buildtime;</segtitle>
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| 19 | <segtitle>&diskspace;</segtitle>
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| 20 | <seglistitem><seg>0.2 SBU</seg><seg>16 MB</seg></seglistitem>
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| 21 | </segmentedlist>
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[673b0d8] | 22 |
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[a001133] | 23 | <segmentedlist>
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| 24 | <segtitle>Util-linux installation depends on</segtitle>
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| 25 | <seglistitem><seg>Bash, Binutils, Coreutils,
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| 26 | Diffutils, GCC, Gettext, Glibc, Grep, Make, Ncurses, Sed, Zlib</seg></seglistitem>
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| 27 | </segmentedlist>
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| 28 | </sect2>
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[673b0d8] | 29 |
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[a001133] | 30 | <sect2 role="installation">
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[673b0d8] | 31 | <title>FHS compliance notes</title>
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| 32 |
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[8ad7980] | 33 | <para>The FHS recommends that we use <filename class="directory">/var/lib/hwclock</filename>,
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| 34 | instead of the usual <filename class="directory">/etc</filename>, as the location for the
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[673b0d8] | 35 | <filename>adjtime</filename> file. To make the <command>hwclock</command>
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| 36 | program FHS-compliant, run the following:</para>
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| 37 |
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[2ec4b60] | 38 | <screen><userinput>sed -i 's@etc/adjtime@var/lib/hwclock/adjtime@g' hwclock/hwclock.c
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[673b0d8] | 39 | mkdir -p /var/lib/hwclock</userinput></screen>
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| 40 |
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| 41 | </sect2>
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| 42 |
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[df8334f] | 43 | <sect2 role="installation">
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[673b0d8] | 44 | <title>Installation of Util-linux</title>
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| 45 |
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[f42b2ff] | 46 | <para>GCC-&gcc-version; miscompiles <command>sfdisk</command> if the
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| 47 | default optimisation level is used. The following command fixes this
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| 48 | issue by changing the optimisation level from O2 to O1.</para>
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| 49 |
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| 50 | <screen><userinput>sed -i -e 's%^include ../MCONFIG%&\n\nCFLAGS:=$(CFLAGS) -O1%' fdisk/Makefile</userinput></screen>
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| 51 |
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[673b0d8] | 52 | <para>Prepare Util-linux for compilation:</para>
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| 53 |
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| 54 | <screen><userinput>./configure</userinput></screen>
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| 55 |
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| 56 | <para>Compile the package:</para>
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| 57 |
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| 58 | <screen><userinput>make HAVE_KILL=yes HAVE_SLN=yes</userinput></screen>
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| 59 |
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| 60 | <para>The meaning of the make parameters:</para>
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| 61 |
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[df8334f] | 62 | <variablelist>
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| 63 | <varlistentry>
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[8ad7980] | 64 | <term><parameter>HAVE_KILL=yes</parameter></term>
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[df8334f] | 65 | <listitem><para>This prevents the
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[673b0d8] | 66 | <command>kill</command> program (already installed by Procps) from being
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| 67 | built and installed again.</para></listitem>
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[df8334f] | 68 | </varlistentry>
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[673b0d8] | 69 |
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[df8334f] | 70 | <varlistentry>
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[8ad7980] | 71 | <term><parameter>HAVE_SLN=yes</parameter></term>
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[df8334f] | 72 | <listitem><para>This prevents the
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[673b0d8] | 73 | <command>sln</command> program (a statically linked
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| 74 | <command>ln</command> already installed by Glibc) from being built and
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| 75 | installed again.</para></listitem>
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[df8334f] | 76 | </varlistentry>
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| 77 | </variablelist>
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[673b0d8] | 78 |
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| 79 | <para>Now install the package:</para>
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| 80 |
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| 81 | <screen><userinput>make HAVE_KILL=yes HAVE_SLN=yes install</userinput></screen>
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| 82 |
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| 83 | </sect2>
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| 84 |
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| 85 |
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[c6cb3aa] | 86 | <sect2 id="contents-utillinux" role="content"><title>Contents of Util-linux</title>
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[673b0d8] | 87 |
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[c6cb3aa] | 88 | <segmentedlist>
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| 89 | <segtitle>Installed programs</segtitle>
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| 90 | <seglistitem><seg>agetty, arch, blockdev, cal, cfdisk, chkdupexe, col, colcrt,
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| 91 | colrm, column, ctrlaltdel, cytune, ddate, dmesg, elvtune, fdformat, fdisk,
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| 92 | fsck.cramfs, fsck.minix, getopt, hexdump, hwclock, ipcrm, ipcs, isosize, line,
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| 93 | logger, look, losetup, mcookie, mkfs, mkfs.bfs, mkfs.cramfs, mkfs.minix, mkswap,
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| 94 | more, mount, namei, pg, pivot_root, ramsize (link to rdev), raw, rdev, readprofile,
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| 95 | rename, renice, rev, rootflags (link to rdev), script, setfdprm, setsid, setterm,
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| 96 | sfdisk, swapoff (link to swapon), swapon, tunelp, ul, umount, vidmode (link to rdev),
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| 97 | whereis and write</seg></seglistitem>
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| 98 | </segmentedlist>
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[673b0d8] | 99 |
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[c6cb3aa] | 100 | <variablelist><title>Short descriptions</title>
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[673b0d8] | 101 |
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[b8a819f] | 102 | <varlistentry id="agetty">
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| 103 | <term><command>agetty</command></term>
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[c6cb3aa] | 104 | <listitem>
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[673b0d8] | 105 | <indexterm zone="ch-system-util-linux agetty"><primary sortas="b-agetty">agetty</primary></indexterm>
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[c6cb3aa] | 106 | <para>opens a tty port, prompts for a login name,
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[8ad7980] | 107 | and then invokes the <command>login</command> program.</para>
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[c6cb3aa] | 108 | </listitem>
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| 109 | </varlistentry>
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[673b0d8] | 110 |
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[b8a819f] | 111 | <varlistentry id="arch">
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| 112 | <term><command>arch</command></term>
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[c6cb3aa] | 113 | <listitem>
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[673b0d8] | 114 | <indexterm zone="ch-system-util-linux arch"><primary sortas="b-arch">arch</primary></indexterm>
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[c6cb3aa] | 115 | <para>reports the machine's architecture.</para>
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| 116 | </listitem>
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| 117 | </varlistentry>
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[673b0d8] | 118 |
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[b8a819f] | 119 | <varlistentry id="blockdev">
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| 120 | <term><command>blockdev</command></term>
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[c6cb3aa] | 121 | <listitem>
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[673b0d8] | 122 | <indexterm zone="ch-system-util-linux blockdev"><primary sortas="b-blockdev">blockdev</primary></indexterm>
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[c6cb3aa] | 123 | <para>allows you to call block device ioctls from the command line.</para>
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| 124 | </listitem>
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| 125 | </varlistentry>
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[673b0d8] | 126 |
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[b8a819f] | 127 | <varlistentry id="cal">
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| 128 | <term><command>cal</command></term>
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[c6cb3aa] | 129 | <listitem>
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[673b0d8] | 130 | <indexterm zone="ch-system-util-linux cal"><primary sortas="b-cal">cal</primary></indexterm>
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[c6cb3aa] | 131 | <para>displays a simple calendar.</para>
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| 132 | </listitem>
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| 133 | </varlistentry>
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[673b0d8] | 134 |
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[b8a819f] | 135 | <varlistentry id="cfdisk">
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| 136 | <term><command>cfdisk</command></term>
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[c6cb3aa] | 137 | <listitem>
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[673b0d8] | 138 | <indexterm zone="ch-system-util-linux cfdisk"><primary sortas="b-cfdisk">cfdisk</primary></indexterm>
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[c6cb3aa] | 139 | <para>is used to manipulate the partition table of the given device.</para>
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| 140 | </listitem>
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| 141 | </varlistentry>
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[673b0d8] | 142 |
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[b8a819f] | 143 | <varlistentry id="chkdupexe">
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| 144 | <term><command>chkdupexe</command></term>
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[c6cb3aa] | 145 | <listitem>
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[673b0d8] | 146 | <indexterm zone="ch-system-util-linux chkdupexe"><primary sortas="b-chkdupexe">chkdupexe</primary></indexterm>
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[c6cb3aa] | 147 | <para>finds duplicate executables.</para>
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| 148 | </listitem>
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| 149 | </varlistentry>
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[673b0d8] | 150 |
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[b8a819f] | 151 | <varlistentry id="col">
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| 152 | <term><command>col</command></term>
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[c6cb3aa] | 153 | <listitem>
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[673b0d8] | 154 | <indexterm zone="ch-system-util-linux col"><primary sortas="b-col">col</primary></indexterm>
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[c6cb3aa] | 155 | <para>filters out reverse line feeds.</para>
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| 156 | </listitem>
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| 157 | </varlistentry>
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[673b0d8] | 158 |
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[b8a819f] | 159 | <varlistentry id="colcrt">
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| 160 | <term><command>colcrt</command></term>
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[c6cb3aa] | 161 | <listitem>
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[673b0d8] | 162 | <indexterm zone="ch-system-util-linux colcrt"><primary sortas="b-colcrt">colcrt</primary></indexterm>
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[c6cb3aa] | 163 | <para>is used to filter nroff output for terminals
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[673b0d8] | 164 | that lack some capabilities such as overstriking and half-lines.</para>
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[c6cb3aa] | 165 | </listitem>
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| 166 | </varlistentry>
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[673b0d8] | 167 |
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[b8a819f] | 168 | <varlistentry id="colrm">
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| 169 | <term><command>colrm</command></term>
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[c6cb3aa] | 170 | <listitem>
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[673b0d8] | 171 | <indexterm zone="ch-system-util-linux colrm"><primary sortas="b-colrm">colrm</primary></indexterm>
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[c6cb3aa] | 172 | <para>filters out the given columns.</para>
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| 173 | </listitem>
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| 174 | </varlistentry>
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[673b0d8] | 175 |
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[b8a819f] | 176 | <varlistentry id="column">
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| 177 | <term><command>column</command></term>
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[c6cb3aa] | 178 | <listitem>
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[673b0d8] | 179 | <indexterm zone="ch-system-util-linux column"><primary sortas="b-column">column</primary></indexterm>
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[c6cb3aa] | 180 | <para>formats a given file into multiple columns.</para>
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| 181 | </listitem>
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| 182 | </varlistentry>
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[673b0d8] | 183 |
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[b8a819f] | 184 | <varlistentry id="ctrlaltdel">
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| 185 | <term><command>ctrlaltdel</command></term>
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[c6cb3aa] | 186 | <listitem>
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[673b0d8] | 187 | <indexterm zone="ch-system-util-linux ctrlaltdel"><primary sortas="b-ctrlaltdel">ctrlaltdel</primary></indexterm>
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[c6cb3aa] | 188 | <para>sets the function of the Ctrl+Alt+Del key combination to a hard or a
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| 189 | soft reset.</para>
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| 190 | </listitem>
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| 191 | </varlistentry>
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| 192 |
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[b8a819f] | 193 | <varlistentry id="cytune">
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| 194 | <term><command>cytune</command></term>
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[c6cb3aa] | 195 | <listitem>
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[673b0d8] | 196 | <indexterm zone="ch-system-util-linux cytune"><primary sortas="b-cytune">cytune</primary></indexterm>
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[c6cb3aa] | 197 | <para>was used to tune the parameters of the
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[673b0d8] | 198 | serial line drivers for Cyclades cards.</para>
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[c6cb3aa] | 199 | </listitem>
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| 200 | </varlistentry>
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[673b0d8] | 201 |
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[b8a819f] | 202 | <varlistentry id="ddate">
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| 203 | <term><command>ddate</command></term>
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[c6cb3aa] | 204 | <listitem>
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[673b0d8] | 205 | <indexterm zone="ch-system-util-linux ddate"><primary sortas="b-ddate">ddate</primary></indexterm>
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[c6cb3aa] | 206 | <para>gives the Discordian date, or converts the
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[673b0d8] | 207 | given Gregorian date to a Discordian one.</para>
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[c6cb3aa] | 208 | </listitem>
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| 209 | </varlistentry>
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[673b0d8] | 210 |
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[b8a819f] | 211 | <varlistentry id="dmesg">
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| 212 | <term><command>dmesg</command></term>
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[c6cb3aa] | 213 | <listitem>
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[673b0d8] | 214 | <indexterm zone="ch-system-util-linux dmesg"><primary sortas="b-dmesg">dmesg</primary></indexterm>
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[c6cb3aa] | 215 | <para>dumps the kernel boot messages.</para>
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| 216 | </listitem>
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| 217 | </varlistentry>
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[673b0d8] | 218 |
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[b8a819f] | 219 | <varlistentry id="elvtune">
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| 220 | <term><command>elvtune</command></term>
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[c6cb3aa] | 221 | <listitem>
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[673b0d8] | 222 | <indexterm zone="ch-system-util-linux elvtune"><primary sortas="b-elvtune">elvtune</primary></indexterm>
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[c6cb3aa] | 223 | <para>can be used to tune the performance
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[673b0d8] | 224 | and interactivity of a block device.</para>
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[c6cb3aa] | 225 | </listitem>
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| 226 | </varlistentry>
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[673b0d8] | 227 |
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[b8a819f] | 228 | <varlistentry id="fdformat">
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| 229 | <term><command>fdformat</command></term>
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[c6cb3aa] | 230 | <listitem>
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[673b0d8] | 231 | <indexterm zone="ch-system-util-linux fdformat"><primary sortas="b-fdformat">fdformat</primary></indexterm>
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[c6cb3aa] | 232 | <para>low-level formats a floppy disk.</para>
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| 233 | </listitem>
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| 234 | </varlistentry>
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[673b0d8] | 235 |
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[b8a819f] | 236 | <varlistentry id="fdisk">
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| 237 | <term><command>fdisk</command></term>
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[c6cb3aa] | 238 | <listitem>
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[673b0d8] | 239 | <indexterm zone="ch-system-util-linux fdisk"><primary sortas="b-fdisk">fdisk</primary></indexterm>
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[c6cb3aa] | 240 | <para>could be used to manipulate the partition table of the given device.</para>
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| 241 | </listitem>
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| 242 | </varlistentry>
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[673b0d8] | 243 |
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[b8a819f] | 244 | <varlistentry id="fsck.cramfs">
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| 245 | <term><command>fsck.cramfs</command></term>
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[c6cb3aa] | 246 | <listitem>
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[673b0d8] | 247 | <indexterm zone="ch-system-util-linux fsck.cramfs"><primary sortas="b-fsck.cramfs">fsck.cramfs</primary></indexterm>
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[c6cb3aa] | 248 | <para>performs a consistency check on the
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[673b0d8] | 249 | Cramfs file system on the given device.</para>
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[c6cb3aa] | 250 | </listitem>
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| 251 | </varlistentry>
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[673b0d8] | 252 |
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[b8a819f] | 253 | <varlistentry id="fsck.minix">
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| 254 | <term><command>fsck.minix</command></term>
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[c6cb3aa] | 255 | <listitem>
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[673b0d8] | 256 | <indexterm zone="ch-system-util-linux fsck.minix"><primary sortas="b-fsck.minix">fsck.minix</primary></indexterm>
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[c6cb3aa] | 257 | <para>performs a consistency check on the
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[673b0d8] | 258 | Minix file system on the given device.</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="getopt">
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| 263 | <term><command>getopt</command></term>
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[c6cb3aa] | 264 | <listitem>
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[673b0d8] | 265 | <indexterm zone="ch-system-util-linux getopt"><primary sortas="b-getopt">getopt</primary></indexterm>
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[c6cb3aa] | 266 | <para>parses options in the given command line.</para>
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| 267 | </listitem>
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| 268 | </varlistentry>
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[673b0d8] | 269 |
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[b8a819f] | 270 | <varlistentry id="hexdump">
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| 271 | <term><command>hexdump</command></term>
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[c6cb3aa] | 272 | <listitem>
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[673b0d8] | 273 | <indexterm zone="ch-system-util-linux hexdump"><primary sortas="b-hexdump">hexdump</primary></indexterm>
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[c6cb3aa] | 274 | <para>dumps the given file in hexadecimal, or in another given format.</para>
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| 275 | </listitem>
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| 276 | </varlistentry>
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[673b0d8] | 277 |
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[b8a819f] | 278 | <varlistentry id="hwclock">
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| 279 | <term><command>hwclock</command></term>
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[c6cb3aa] | 280 | <listitem>
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[673b0d8] | 281 | <indexterm zone="ch-system-util-linux hwclock"><primary sortas="b-hwclock">hwclock</primary></indexterm>
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[c6cb3aa] | 282 | <para>is used to read or set the system's hardware clock, also called the RTC
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| 283 | (Real-Time Clock) or BIOS (Basic Input-Output System) clock.</para>
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| 284 | </listitem>
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| 285 | </varlistentry>
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| 286 |
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[b8a819f] | 287 | <varlistentry id="ipcrm">
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| 288 | <term><command>ipcrm</command></term>
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[c6cb3aa] | 289 | <listitem>
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[673b0d8] | 290 | <indexterm zone="ch-system-util-linux ipcrm"><primary sortas="b-ipcrm">ipcrm</primary></indexterm>
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[c6cb3aa] | 291 | <para>removes the given IPC resource.</para>
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| 292 | </listitem>
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| 293 | </varlistentry>
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[673b0d8] | 294 |
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[b8a819f] | 295 | <varlistentry id="ipcs">
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| 296 | <term><command>ipcs</command></term>
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[c6cb3aa] | 297 | <listitem>
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[673b0d8] | 298 | <indexterm zone="ch-system-util-linux ipcs"><primary sortas="b-ipcs">ipcs</primary></indexterm>
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[c6cb3aa] | 299 | <para>provides IPC status information.</para>
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| 300 | </listitem>
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| 301 | </varlistentry>
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[673b0d8] | 302 |
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[b8a819f] | 303 | <varlistentry id="isosize">
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| 304 | <term><command>isosize</command></term>
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[c6cb3aa] | 305 | <listitem>
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[673b0d8] | 306 | <indexterm zone="ch-system-util-linux isosize"><primary sortas="b-isosize">isosize</primary></indexterm>
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[c6cb3aa] | 307 | <para>reports the size of an iso9660 file system.</para>
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| 308 | </listitem>
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| 309 | </varlistentry>
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[673b0d8] | 310 |
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[b8a819f] | 311 | <varlistentry id="line">
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| 312 | <term><command>line</command></term>
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[c6cb3aa] | 313 | <listitem>
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[673b0d8] | 314 | <indexterm zone="ch-system-util-linux line"><primary sortas="b-line">line</primary></indexterm>
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[c6cb3aa] | 315 | <para>copies a single line.</para>
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| 316 | </listitem>
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| 317 | </varlistentry>
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[673b0d8] | 318 |
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[b8a819f] | 319 | <varlistentry id="logger">
|
---|
| 320 | <term><command>logger</command></term>
|
---|
[c6cb3aa] | 321 | <listitem>
|
---|
[673b0d8] | 322 | <indexterm zone="ch-system-util-linux logger"><primary sortas="b-logger">logger</primary></indexterm>
|
---|
[c6cb3aa] | 323 | <para>enters the given message into the system log.</para>
|
---|
| 324 | </listitem>
|
---|
| 325 | </varlistentry>
|
---|
[673b0d8] | 326 |
|
---|
[b8a819f] | 327 | <varlistentry id="look">
|
---|
| 328 | <term><command>look</command></term>
|
---|
[c6cb3aa] | 329 | <listitem>
|
---|
[673b0d8] | 330 | <indexterm zone="ch-system-util-linux look"><primary sortas="b-look">look</primary></indexterm>
|
---|
[c6cb3aa] | 331 | <para>displays lines that begin with the given string.</para>
|
---|
| 332 | </listitem>
|
---|
| 333 | </varlistentry>
|
---|
[673b0d8] | 334 |
|
---|
[b8a819f] | 335 | <varlistentry id="losetup">
|
---|
| 336 | <term><command>losetup</command></term>
|
---|
[c6cb3aa] | 337 | <listitem>
|
---|
[673b0d8] | 338 | <indexterm zone="ch-system-util-linux losetup"><primary sortas="b-losetup">losetup</primary></indexterm>
|
---|
[c6cb3aa] | 339 | <para>is used to set up and control loop devices.</para>
|
---|
| 340 | </listitem>
|
---|
| 341 | </varlistentry>
|
---|
[673b0d8] | 342 |
|
---|
[b8a819f] | 343 | <varlistentry id="mcookie">
|
---|
| 344 | <term><command>mcookie</command></term>
|
---|
[c6cb3aa] | 345 | <listitem>
|
---|
[673b0d8] | 346 | <indexterm zone="ch-system-util-linux mcookie"><primary sortas="b-mcookie">mcookie</primary></indexterm>
|
---|
[c6cb3aa] | 347 | <para>generates magic cookies, 128-bit random hexadecimal numbers,
|
---|
[8ad7980] | 348 | for <command>xauth</command>.</para>
|
---|
[c6cb3aa] | 349 | </listitem>
|
---|
| 350 | </varlistentry>
|
---|
| 351 |
|
---|
[b8a819f] | 352 | <varlistentry id="mkfs">
|
---|
| 353 | <term><command>mkfs</command></term>
|
---|
[c6cb3aa] | 354 | <listitem>
|
---|
[673b0d8] | 355 | <indexterm zone="ch-system-util-linux mkfs"><primary sortas="b-mkfs">mkfs</primary></indexterm>
|
---|
[c6cb3aa] | 356 | <para>is used to build a file system on a device
|
---|
[673b0d8] | 357 | (usually a hard disk partition).</para>
|
---|
[c6cb3aa] | 358 | </listitem>
|
---|
| 359 | </varlistentry>
|
---|
[673b0d8] | 360 |
|
---|
[b8a819f] | 361 | <varlistentry id="mkfs.bfs">
|
---|
| 362 | <term><command>mkfs.bfs</command></term>
|
---|
[c6cb3aa] | 363 | <listitem>
|
---|
[673b0d8] | 364 | <indexterm zone="ch-system-util-linux mkfs.bfs"><primary sortas="b-mkfs.bfs">mkfs.bfs</primary></indexterm>
|
---|
[c6cb3aa] | 365 | <para>creates an SCO (Santa Cruz Operations) bfs file system.</para>
|
---|
| 366 | </listitem>
|
---|
| 367 | </varlistentry>
|
---|
[673b0d8] | 368 |
|
---|
[b8a819f] | 369 | <varlistentry id="mkfs.cramfs">
|
---|
| 370 | <term><command>mkfs.cramfs</command></term>
|
---|
[c6cb3aa] | 371 | <listitem>
|
---|
[673b0d8] | 372 | <indexterm zone="ch-system-util-linux mkfs.cramfs"><primary sortas="b-mkfs.cramfs">mkfs.cramfs</primary></indexterm>
|
---|
[c6cb3aa] | 373 | <para>creates a cramfs file system.</para>
|
---|
| 374 | </listitem>
|
---|
| 375 | </varlistentry>
|
---|
[673b0d8] | 376 |
|
---|
[b8a819f] | 377 | <varlistentry id="mkfs.minix">
|
---|
| 378 | <term><command>mkfs.minix</command></term>
|
---|
[c6cb3aa] | 379 | <listitem>
|
---|
[673b0d8] | 380 | <indexterm zone="ch-system-util-linux mkfs.minix"><primary sortas="b-mkfs.minix">mkfs.minix</primary></indexterm>
|
---|
[c6cb3aa] | 381 | <para>creates a Minix file system.</para>
|
---|
| 382 | </listitem>
|
---|
| 383 | </varlistentry>
|
---|
[673b0d8] | 384 |
|
---|
[b8a819f] | 385 | <varlistentry id="mkswap">
|
---|
| 386 | <term><command>mkswap</command></term>
|
---|
[c6cb3aa] | 387 | <listitem>
|
---|
[673b0d8] | 388 | <indexterm zone="ch-system-util-linux mkswap"><primary sortas="b-mkswap">mkswap</primary></indexterm>
|
---|
[c6cb3aa] | 389 | <para>initializes the given device or file to be used as a swap area.</para>
|
---|
| 390 | </listitem>
|
---|
| 391 | </varlistentry>
|
---|
[673b0d8] | 392 |
|
---|
[b8a819f] | 393 | <varlistentry id="more">
|
---|
| 394 | <term><command>more</command></term>
|
---|
[c6cb3aa] | 395 | <listitem>
|
---|
[673b0d8] | 396 | <indexterm zone="ch-system-util-linux more"><primary sortas="b-more">more</primary></indexterm>
|
---|
[c6cb3aa] | 397 | <para>is a filter for paging through text one
|
---|
[8ad7980] | 398 | screen full at a time. But <command>less</command> is much better.</para>
|
---|
[c6cb3aa] | 399 | </listitem>
|
---|
| 400 | </varlistentry>
|
---|
[673b0d8] | 401 |
|
---|
[b8a819f] | 402 | <varlistentry id="mount">
|
---|
| 403 | <term><command>mount</command></term>
|
---|
[c6cb3aa] | 404 | <listitem>
|
---|
[673b0d8] | 405 | <indexterm zone="ch-system-util-linux mount"><primary sortas="b-mount">mount</primary></indexterm>
|
---|
[c6cb3aa] | 406 | <para>attaches the file system on the given device to a specified directory (thus
|
---|
| 407 | hiding the contents of that directory) in the file-system tree.</para>
|
---|
| 408 | </listitem>
|
---|
| 409 | </varlistentry>
|
---|
| 410 |
|
---|
[b8a819f] | 411 | <varlistentry id="namei">
|
---|
| 412 | <term><command>namei</command></term>
|
---|
[c6cb3aa] | 413 | <listitem>
|
---|
[673b0d8] | 414 | <indexterm zone="ch-system-util-linux namei"><primary sortas="b-namei">namei</primary></indexterm>
|
---|
[c6cb3aa] | 415 | <para>shows the symbolic links in the given pathnames.</para>
|
---|
| 416 | </listitem>
|
---|
| 417 | </varlistentry>
|
---|
[673b0d8] | 418 |
|
---|
[b8a819f] | 419 | <varlistentry id="pg">
|
---|
| 420 | <term><command>pg</command></term>
|
---|
[c6cb3aa] | 421 | <listitem>
|
---|
[673b0d8] | 422 | <indexterm zone="ch-system-util-linux pg"><primary sortas="b-pg">pg</primary></indexterm>
|
---|
[c6cb3aa] | 423 | <para>displays a text file one screen full at a time.</para>
|
---|
| 424 | </listitem>
|
---|
| 425 | </varlistentry>
|
---|
[673b0d8] | 426 |
|
---|
[b8a819f] | 427 | <varlistentry id="pivot_root">
|
---|
| 428 | <term><command>pivot_root</command></term>
|
---|
[c6cb3aa] | 429 | <listitem>
|
---|
[673b0d8] | 430 | <indexterm zone="ch-system-util-linux pivot_root"><primary sortas="b-pivot_root">pivot_root</primary></indexterm>
|
---|
[c6cb3aa] | 431 | <para>makes the given file system the new
|
---|
[673b0d8] | 432 | root file system of the current process.</para>
|
---|
[c6cb3aa] | 433 | </listitem>
|
---|
| 434 | </varlistentry>
|
---|
[673b0d8] | 435 |
|
---|
[b8a819f] | 436 | <varlistentry id="ramsize">
|
---|
| 437 | <term><command>ramsize</command></term>
|
---|
[c6cb3aa] | 438 | <listitem>
|
---|
[673b0d8] | 439 | <indexterm zone="ch-system-util-linux ramsize"><primary sortas="b-ramsize">ramsize</primary></indexterm>
|
---|
[c6cb3aa] | 440 | <para>is used to set the size of the RAM disk in a bootable image.</para>
|
---|
| 441 | </listitem>
|
---|
| 442 | </varlistentry>
|
---|
[673b0d8] | 443 |
|
---|
[b8a819f] | 444 | <varlistentry id="rdev">
|
---|
| 445 | <term><command>rdev</command></term>
|
---|
[c6cb3aa] | 446 | <listitem>
|
---|
[673b0d8] | 447 | <indexterm zone="ch-system-util-linux rdev"><primary sortas="b-rdev">rdev</primary></indexterm>
|
---|
[c6cb3aa] | 448 | <para>is used to query and set the root
|
---|
[673b0d8] | 449 | device and other things in a bootable image.</para>
|
---|
[c6cb3aa] | 450 | </listitem>
|
---|
| 451 | </varlistentry>
|
---|
[673b0d8] | 452 |
|
---|
[b8a819f] | 453 | <varlistentry id="readprofile">
|
---|
| 454 | <term><command>readprofile</command></term>
|
---|
[c6cb3aa] | 455 | <listitem>
|
---|
[673b0d8] | 456 | <indexterm zone="ch-system-util-linux readprofile"><primary sortas="b-readprofile">readprofile</primary></indexterm>
|
---|
[c6cb3aa] | 457 | <para>reads kernel profiling information.</para>
|
---|
| 458 | </listitem>
|
---|
| 459 | </varlistentry>
|
---|
[673b0d8] | 460 |
|
---|
[b8a819f] | 461 | <varlistentry id="rename">
|
---|
| 462 | <term><command>rename</command></term>
|
---|
[c6cb3aa] | 463 | <listitem>
|
---|
[673b0d8] | 464 | <indexterm zone="ch-system-util-linux rename"><primary sortas="b-rename">rename</primary></indexterm>
|
---|
[c6cb3aa] | 465 | <para>renames the given files, replacing a given string with another.</para>
|
---|
| 466 | </listitem>
|
---|
| 467 | </varlistentry>
|
---|
[673b0d8] | 468 |
|
---|
[b8a819f] | 469 | <varlistentry id="renice">
|
---|
| 470 | <term><command>renice</command></term>
|
---|
[c6cb3aa] | 471 | <listitem>
|
---|
[673b0d8] | 472 | <indexterm zone="ch-system-util-linux renice"><primary sortas="b-renice">renice</primary></indexterm>
|
---|
[c6cb3aa] | 473 | <para>is used to alter the priority of running processes.</para>
|
---|
| 474 | </listitem>
|
---|
| 475 | </varlistentry>
|
---|
[673b0d8] | 476 |
|
---|
[b8a819f] | 477 | <varlistentry id="rev">
|
---|
| 478 | <term><command>rev</command></term>
|
---|
[c6cb3aa] | 479 | <listitem>
|
---|
[673b0d8] | 480 | <indexterm zone="ch-system-util-linux rev"><primary sortas="b-rev">rev</primary></indexterm>
|
---|
[c6cb3aa] | 481 | <para>reverses the lines of a given file.</para>
|
---|
| 482 | </listitem>
|
---|
| 483 | </varlistentry>
|
---|
[673b0d8] | 484 |
|
---|
[b8a819f] | 485 | <varlistentry id="rootflags">
|
---|
| 486 | <term><command>rootflags</command></term>
|
---|
[c6cb3aa] | 487 | <listitem>
|
---|
[673b0d8] | 488 | <indexterm zone="ch-system-util-linux rootflags"><primary sortas="b-rootflags">rootflags</primary></indexterm>
|
---|
[c6cb3aa] | 489 | <para>is used to set the rootflags in a bootable image.</para>
|
---|
| 490 | </listitem>
|
---|
| 491 | </varlistentry>
|
---|
[673b0d8] | 492 |
|
---|
[b8a819f] | 493 | <varlistentry id="script">
|
---|
| 494 | <term><command>script</command></term>
|
---|
[c6cb3aa] | 495 | <listitem>
|
---|
[673b0d8] | 496 | <indexterm zone="ch-system-util-linux script"><primary sortas="b-script">script</primary></indexterm>
|
---|
[c6cb3aa] | 497 | <para>makes a typescript of a terminal session, of everything printed to
|
---|
| 498 | the terminal.</para>
|
---|
| 499 | </listitem>
|
---|
| 500 | </varlistentry>
|
---|
| 501 |
|
---|
[b8a819f] | 502 | <varlistentry id="setfdprm">
|
---|
| 503 | <term><command>setfdprm</command></term>
|
---|
[c6cb3aa] | 504 | <listitem>
|
---|
[673b0d8] | 505 | <indexterm zone="ch-system-util-linux setfdprm"><primary sortas="b-setfdprm">setfdprm</primary></indexterm>
|
---|
[c6cb3aa] | 506 | <para>sets user-provided floppy disk parameters.</para>
|
---|
| 507 | </listitem>
|
---|
| 508 | </varlistentry>
|
---|
[673b0d8] | 509 |
|
---|
[b8a819f] | 510 | <varlistentry id="setsid">
|
---|
| 511 | <term><command>setsid</command></term>
|
---|
[c6cb3aa] | 512 | <listitem>
|
---|
[673b0d8] | 513 | <indexterm zone="ch-system-util-linux setsid"><primary sortas="b-setsid">setsid</primary></indexterm>
|
---|
[c6cb3aa] | 514 | <para>runs the given program in a new session.</para>
|
---|
| 515 | </listitem>
|
---|
| 516 | </varlistentry>
|
---|
[673b0d8] | 517 |
|
---|
[b8a819f] | 518 | <varlistentry id="setterm">
|
---|
| 519 | <term><command>setterm</command></term>
|
---|
[c6cb3aa] | 520 | <listitem>
|
---|
[673b0d8] | 521 | <indexterm zone="ch-system-util-linux setterm"><primary sortas="b-setterm">setterm</primary></indexterm>
|
---|
[c6cb3aa] | 522 | <para>is used to set terminal attributes.</para>
|
---|
| 523 | </listitem>
|
---|
| 524 | </varlistentry>
|
---|
[673b0d8] | 525 |
|
---|
[b8a819f] | 526 | <varlistentry id="sfdisk">
|
---|
| 527 | <term><command>sfdisk</command></term>
|
---|
[c6cb3aa] | 528 | <listitem>
|
---|
[673b0d8] | 529 | <indexterm zone="ch-system-util-linux sfdisk"><primary sortas="b-sfdisk">sfdisk</primary></indexterm>
|
---|
[c6cb3aa] | 530 | <para>is a disk partition table manipulator.</para>
|
---|
| 531 | </listitem>
|
---|
| 532 | </varlistentry>
|
---|
[673b0d8] | 533 |
|
---|
[b8a819f] | 534 | <varlistentry id="swapdev">
|
---|
| 535 | <term><command>swapdev</command></term>
|
---|
[c6cb3aa] | 536 | <listitem>
|
---|
[673b0d8] | 537 | <indexterm zone="ch-system-util-linux swapdev"><primary sortas="b-swapdev">swapdev</primary></indexterm>
|
---|
[c6cb3aa] | 538 | <para>is used to set the swap device in a bootable image.</para>
|
---|
| 539 | </listitem>
|
---|
| 540 | </varlistentry>
|
---|
[673b0d8] | 541 |
|
---|
[b8a819f] | 542 | <varlistentry id="swapoff">
|
---|
| 543 | <term><command>swapoff</command></term>
|
---|
[c6cb3aa] | 544 | <listitem>
|
---|
[673b0d8] | 545 | <indexterm zone="ch-system-util-linux swapoff"><primary sortas="b-swapoff">swapoff</primary></indexterm>
|
---|
[c6cb3aa] | 546 | <para>disables devices and files for paging and swapping.</para>
|
---|
| 547 | </listitem>
|
---|
| 548 | </varlistentry>
|
---|
[673b0d8] | 549 |
|
---|
[b8a819f] | 550 | <varlistentry id="swapon">
|
---|
| 551 | <term><command>swapon</command></term>
|
---|
[c6cb3aa] | 552 | <listitem>
|
---|
[673b0d8] | 553 | <indexterm zone="ch-system-util-linux swapon"><primary sortas="b-swapon">swapon</primary></indexterm>
|
---|
[c6cb3aa] | 554 | <para>enables devices and files for paging and swapping.</para>
|
---|
| 555 | </listitem>
|
---|
| 556 | </varlistentry>
|
---|
[673b0d8] | 557 |
|
---|
[b8a819f] | 558 | <varlistentry id="tunelp">
|
---|
| 559 | <term><command>tunelp</command></term>
|
---|
[c6cb3aa] | 560 | <listitem>
|
---|
[673b0d8] | 561 | <indexterm zone="ch-system-util-linux tunelp"><primary sortas="b-tunelp">tunelp</primary></indexterm>
|
---|
[c6cb3aa] | 562 | <para>is used to tune the parameters of the line printer.</para>
|
---|
| 563 | </listitem>
|
---|
| 564 | </varlistentry>
|
---|
[673b0d8] | 565 |
|
---|
[b8a819f] | 566 | <varlistentry id="ul">
|
---|
| 567 | <term><command>ul</command></term>
|
---|
[c6cb3aa] | 568 | <listitem>
|
---|
[673b0d8] | 569 | <indexterm zone="ch-system-util-linux ul"><primary sortas="b-ul">ul</primary></indexterm>
|
---|
[c6cb3aa] | 570 | <para>is a filter for translating underscores into
|
---|
[673b0d8] | 571 | escape sequences indicating underlining for the terminal in use.</para>
|
---|
[c6cb3aa] | 572 | </listitem>
|
---|
| 573 | </varlistentry>
|
---|
[673b0d8] | 574 |
|
---|
[b8a819f] | 575 | <varlistentry id="umount">
|
---|
| 576 | <term><command>umount</command></term>
|
---|
[c6cb3aa] | 577 | <listitem>
|
---|
[673b0d8] | 578 | <indexterm zone="ch-system-util-linux umount"><primary sortas="b-umount">umount</primary></indexterm>
|
---|
[c6cb3aa] | 579 | <para>disconnects a file system from the system's file tree.</para>
|
---|
| 580 | </listitem>
|
---|
| 581 | </varlistentry>
|
---|
[673b0d8] | 582 |
|
---|
[b8a819f] | 583 | <varlistentry id="vidmode">
|
---|
| 584 | <term><command>vidmode</command></term>
|
---|
[c6cb3aa] | 585 | <listitem>
|
---|
[673b0d8] | 586 | <indexterm zone="ch-system-util-linux vidmode"><primary sortas="b-vidmode">vidmode</primary></indexterm>
|
---|
[c6cb3aa] | 587 | <para>could be used to set the video mode in a bootable image.</para>
|
---|
| 588 | </listitem>
|
---|
| 589 | </varlistentry>
|
---|
[673b0d8] | 590 |
|
---|
[b8a819f] | 591 | <varlistentry id="whereis">
|
---|
| 592 | <term><command>whereis</command></term>
|
---|
[c6cb3aa] | 593 | <listitem>
|
---|
[673b0d8] | 594 | <indexterm zone="ch-system-util-linux whereis"><primary sortas="b-whereis">whereis</primary></indexterm>
|
---|
[c6cb3aa] | 595 | <para>reports the location of binary, the
|
---|
[673b0d8] | 596 | source, and the manual page for the given command.</para>
|
---|
[c6cb3aa] | 597 | </listitem>
|
---|
| 598 | </varlistentry>
|
---|
[673b0d8] | 599 |
|
---|
[b8a819f] | 600 | <varlistentry id="write">
|
---|
| 601 | <term><command>write</command></term>
|
---|
[c6cb3aa] | 602 | <listitem>
|
---|
[673b0d8] | 603 | <indexterm zone="ch-system-util-linux write"><primary sortas="b-write">write</primary></indexterm>
|
---|
[c6cb3aa] | 604 | <para>sends a message to the given user,
|
---|
[673b0d8] | 605 | <emphasis>if</emphasis> that user has not disabled such messages.</para>
|
---|
[c6cb3aa] | 606 | </listitem>
|
---|
| 607 | </varlistentry>
|
---|
| 608 | </variablelist>
|
---|
[673b0d8] | 609 |
|
---|
| 610 | </sect2>
|
---|
| 611 |
|
---|
| 612 | </sect1>
|
---|