diff options
| author | stefanf <stefanf@FreeBSD.org> | 2006-06-15 07:00:49 +0000 |
|---|---|---|
| committer | stefanf <stefanf@FreeBSD.org> | 2006-06-15 07:00:49 +0000 |
| commit | 40616c7bb389aaa1e23907cad897503212b8e51e (patch) | |
| tree | ffddd6afca1624ba622d55a632b321308ad597fc /bin/sh/sh.1 | |
| parent | 1689a257a3225150b95ea8241663b4784ac60e9f (diff) | |
| download | FreeBSD-src-40616c7bb389aaa1e23907cad897503212b8e51e.zip FreeBSD-src-40616c7bb389aaa1e23907cad897503212b8e51e.tar.gz | |
Implement the PS4 variable which is defined by the POSIX User Portability
Utilities option. Its value is printed at the beginning of the line if tracing
(-x) is active. PS4 defaults to the string "+ " which is compatible with the
old behaviour to always print "+ ".
We still need to expand variables in PS1, PS2 and PS4.
PR: 46441 (part of)
Submitted by: schweikh
Obtained from: NetBSD
Diffstat (limited to 'bin/sh/sh.1')
| -rw-r--r-- | bin/sh/sh.1 | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/bin/sh/sh.1 b/bin/sh/sh.1 index 3c2fa9c..438fc24 100644 --- a/bin/sh/sh.1 +++ b/bin/sh/sh.1 @@ -32,7 +32,7 @@ .\" from: @(#)sh.1 8.6 (Berkeley) 5/4/95 .\" $FreeBSD$ .\" -.Dd December 8, 2005 +.Dd June 15, 2006 .Dt SH 1 .Os .Sh NAME @@ -305,8 +305,9 @@ as it is read. Useful for debugging. .It Fl x Li xtrace Write each command -(preceded by -.Dq Li "+ " ) +(preceded by the value of the +.Ev PS4 +variable) to standard error before it is executed. Useful for debugging. .El @@ -2197,6 +2198,12 @@ unless you are the superuser, in which case it defaults to .It Ev PS2 The secondary prompt string, which defaults to .Dq Li "> " . +.It Ev PS4 +The prefix for the trace output (if +.Fl x +is active). +The default is +.Dq Li "+ " . .It Ev TERM The default terminal setting for the shell. This is inherited by children of the shell, and is used in the history |
