initial-import
reorg
Last change
on this file since 25357c89 was f45b1953, checked in by Mark Hymers <markh@…>, 22 years ago |
Initial revision
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@3 af4574ff-66df-0310-9fd7-8a98e5e911e0
|
-
Property mode
set to
100644
|
File size:
1.5 KB
|
Rev | Line | |
---|
[f45b1953] | 1 | <sect1 id="which" xreflabel="which-&which-version;">
|
---|
| 2 | <?dbhtml filename="which.html" dir="general"?>
|
---|
| 3 | <title>The "which" program / script</title>
|
---|
| 4 |
|
---|
| 5 | <para>The presence / absence of the which program in the main LFS book
|
---|
| 6 | is probably one of the most contentious issues we have on the mailing
|
---|
| 7 | lists. It has resulted in at least one flame war in the recent past.
|
---|
| 8 | To hopefully put an end to this once and for all, we here present the
|
---|
| 9 | various options for equipping your system with "which".</para>
|
---|
| 10 |
|
---|
| 11 | <para>The first option is simply to use a bash alias:</para>
|
---|
| 12 | <screen>alias which='type -p'</screen>
|
---|
| 13 | <para>This command can be put in your
|
---|
| 14 | <filename>~/.bash_profile</filename> or <filename>~/.bashrc</filename>
|
---|
| 15 | file in order to be set up each time you log in (see man bash for more
|
---|
| 16 | information on the bash login files). This will not always work
|
---|
| 17 | however, for example it will fail when a program needs to use "which"
|
---|
| 18 | but
|
---|
| 19 | doesn't spawn a shell.</para>
|
---|
| 20 |
|
---|
| 21 | <para>The second option is to create a simple script:</para>
|
---|
| 22 | <para><screen><userinput>cat > /usr/bin/which <<
|
---|
| 23 | "EOF"</userinput>
|
---|
| 24 | #!/bin/bash
|
---|
| 25 | type -p "$@"
|
---|
| 26 | <userinput>EOF
|
---|
| 27 | chmod 755 /usr/bin/which
|
---|
| 28 | chown root.root /usr/bin/which</userinput></screen></para>
|
---|
| 29 | <para>This should generally work OK and is probably the easiest solution
|
---|
| 30 | for boxes which don't need a good user environment to work in.</para>
|
---|
| 31 |
|
---|
| 32 | <para>The third option is to install the actual program
|
---|
| 33 | <emphasis>which</emphasis>.</para>
|
---|
| 34 |
|
---|
| 35 | &which-intro;
|
---|
| 36 | &which-inst;
|
---|
| 37 | &which-desc;
|
---|
| 38 |
|
---|
| 39 | </sect1>
|
---|
| 40 |
|
---|
Note:
See
TracBrowser
for help on using the repository browser.