| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/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 |
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| 8 | <sect1 id="ch-scripts-profile">
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| 9 | <title>The Bash Shell Startup Files</title>
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| 10 | <?dbhtml filename="profile.html"?>
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| 11 |
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| 12 | <indexterm zone="ch-scripts-profile">
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| 13 | <primary sortas="e-/etc/profile">/etc/profile</primary>
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| 14 | </indexterm>
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| 15 |
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| 16 | <para>The shell program <command>/bin/bash</command> (hereafter
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| 17 | referred to as <quote>the shell</quote>) uses a collection of startup
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| 18 | files to help create an environment to run in. Each file has a
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| 19 | specific use and may affect login and interactive environments
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| 20 | differently. The files in the <filename class="directory">/etc</filename>
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| 21 | directory provide global settings. If an equivalent file exists in the
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| 22 | home directory, it may override the global settings.</para>
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| 23 |
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| 24 | <para>An interactive login shell is started after a successful login,
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| 25 | using <command>/bin/login</command>, by reading the
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| 26 | <filename>/etc/passwd</filename> file. An interactive non-login shell
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| 27 | is started at the command-line (e.g.,
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| 28 | <prompt>[prompt]$</prompt><command>/bin/bash</command>). A
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| 29 | non-interactive shell is usually present when a shell script is
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| 30 | running. It is non-interactive because it is processing a script and
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| 31 | not waiting for user input between commands.</para>
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| 32 |
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| 33 | <para>For more information, see <command>info bash</command> under the
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| 34 | <emphasis>Bash Startup Files and Interactive Shells</emphasis> section,
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| 35 | and <ulink url="&cblfs-root;index.php/Bash_Startup_Files">Bash Startup
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| 36 | Files</ulink> in CBLFS.</para>
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| 37 |
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| 38 | <para>The files <filename>/etc/profile</filename> and
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| 39 | <filename>~/.bash_profile</filename> are read when the shell is
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| 40 | invoked as an interactive login shell. In the next section, a base
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| 41 | <filename>/etc/profile</filename> will be created to set up locale
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| 42 | information.</para>
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| 43 |
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| 44 | </sect1>
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