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Document a few expansions for the $PS1 and $PS2 environmental variables.

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PR:		173410
Submitted by:	Derek Wood <ddwood@outlook.com>
Reviewed by:	jilles
This commit is contained in:
Joel Dahl 2013-04-21 19:55:38 +00:00
parent 2cd19a510a
commit 1ca3beb91f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=249740
1 changed files with 25 additions and 1 deletions
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26
bin/sh/sh.1
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@ -32,7 +32,7 @@
.\" from: @(#)sh.1 8.6 (Berkeley) 5/4/95
.\" $FreeBSD$
.\"
.Dd March 24, 2013
.Dd April 21, 2013
.Dt SH 1
.Os
.Sh NAME
@ -1340,9 +1340,33 @@ The primary prompt string, which defaults to
.Dq Li "$ " ,
unless you are the superuser, in which case it defaults to
.Dq Li "# " .
.Va PS1
may include any of the following formatting sequences,
which are replaced by the given information:
.Bl -tag -width indent
.It Li \eH
The local hostname.
.It Li \eh
The fully-qualified hostname.
.It Li \eW
The final component of the current working directory.
.It Li \ew
The entire path of the current working directory.
.It Li \e$
Superuser status.
.Dq Li "$ "
for normal users and
.Dq Li "# "
for superusers.
.It Li \e\e
A literal backslash.
.El
.It Va PS2
The secondary prompt string, which defaults to
.Dq Li "> " .
.Va PS2
may include any of the formatting sequences from
.Va PS1 .
.It Va PS4
The prefix for the trace output (if
.Fl x