[52d29f7] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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| 7 | <!ENTITY which-download-http "http://www.xs4all.nl/~carlo17/which/which-&which-version;.tar.gz">
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| 8 | <!ENTITY which-download-ftp "ftp://ftp.gnu.org/gnu/which/which-&which-version;.tar.gz">
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| 9 | <!ENTITY which-size "123 KB">
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| 10 | <!ENTITY which-buildsize "940 KB">
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| 11 | <!ENTITY which-time "0.03 SBU">
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| 12 | ]>
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| 13 |
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[f45b1953] | 14 | <sect1 id="which" xreflabel="which-&which-version;">
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[7f72cbf] | 15 | <?dbhtml filename="which.html"?>
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[ca3bcd40] | 16 | <title>which-&which-version; and alternatives</title>
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[f45b1953] | 17 |
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[70b65ddf] | 18 | <para>The presence or absence of the which program in the main <acronym>LFS
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[110ec35a] | 19 | </acronym> book is probably one of the most contentious issues we have on the
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[70b65ddf] | 20 | mailing lists. It has resulted in at least one flame war in the past.
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[85ef7049] | 21 | To hopefully put an end to this once and for all, we here present two of
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[2ab68bb] | 22 | the options for equipping your system with "which". The question of which "which"
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| 23 | is for you to decide.</para>
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[f45b1953] | 24 |
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[46bca118] | 25 | <para>The first option is to install the actual <acronym>GNU</acronym> program
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[85ef7049] | 26 | <emphasis>which</emphasis>.</para>
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| 27 |
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[52d29f7] | 28 | <sect2>
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| 29 | <title>Introduction to <application>which</application></title>
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| 30 |
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| 31 | <sect3><title>Package information</title>
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| 32 | <itemizedlist spacing='compact'>
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| 33 | <listitem><para>Download (HTTP): <ulink
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| 34 | url="&which-download-http;"/></para></listitem>
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| 35 | <listitem><para>Download (FTP): <ulink
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| 36 | url="&which-download-ftp;"/></para></listitem>
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| 37 | <listitem><para>Download size: &which-size;</para></listitem>
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| 38 | <listitem><para>Estimated Disk space required:
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| 39 | &which-buildsize;</para></listitem>
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| 40 | <listitem><para>Estimated build time:
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| 41 | &which-time;</para></listitem></itemizedlist>
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| 42 | </sect3>
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| 43 |
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| 44 |
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| 45 | </sect2>
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| 46 |
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| 47 | <sect2>
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| 48 | <title>Installation of <application>which</application></title>
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| 49 |
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| 50 | <para>Install <application>which</application> by running the following
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| 51 | commands:</para>
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| 52 |
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| 53 | <screen><userinput><command>./configure --prefix=/usr &&
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| 54 | make &&
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| 55 | make install</command></userinput></screen>
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| 56 |
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| 57 | </sect2>
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| 58 |
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| 59 |
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| 60 | <sect2>
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| 61 | <title>Contents</title>
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| 62 |
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| 63 | <para>The <application>which</application> package contains <command>which</command>.</para>
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| 64 |
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| 65 | </sect2>
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| 66 |
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| 67 | <sect2><title>Description</title>
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| 68 |
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| 69 | <sect3><title>which</title>
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| 70 | <para><command>which</command> shows the full path of (shell) commands.</para>
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| 71 | </sect3>
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| 72 |
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| 73 | </sect2>
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[f45b1953] | 74 |
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[52d29f7] | 75 | <sect2>
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| 76 | <title>The 'which' script</title>
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[85ef7049] | 77 | <para>The second option (for those who don't want to install the program)
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| 78 | is to create a simple script:</para>
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[110ec35a] | 79 | <screen><userinput><command>cat > /usr/bin/which << "EOF"</command>
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[f45b1953] | 80 | #!/bin/bash
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[2687739] | 81 | type -pa "$@" | head -n 1 ; exit ${PIPESTATUS[0]}
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[110ec35a] | 82 | <command>EOF
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[f45b1953] | 83 | chmod 755 /usr/bin/which
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[110ec35a] | 84 | chown root:root /usr/bin/which</command></userinput></screen>
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[70b65ddf] | 85 | <para>This should work OK and is probably the easiest solution
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| 86 | for most cases, but is not the most comprehensive implementation.</para>
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[85ef7049] | 87 | </sect2>
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[f45b1953] | 88 |
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| 89 | </sect1>
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| 90 |
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