svn commit: r214609 - head/bin/sh

[Jilles Tjoelker]

Author: jilles
Date: Sun Oct 31 23:03:11 2010
New Revision: 214609
URL: http://svn.freebsd.org/changeset/base/214609

Log:
  sh(1): Correct synopsis and make precise how $0 is set.
  
  In particular, the extra argument to set $0 with -c was not documented.
  
  MFC after:	1 week

Modified:
  head/bin/sh/sh.1

Modified: head/bin/sh/sh.1
==============================================================================
--- head/bin/sh/sh.1	Sun Oct 31 22:59:49 2010	(r214608)
+++ head/bin/sh/sh.1	Sun Oct 31 23:03:11 2010	(r214609)
@@ -32,7 +32,7 @@
 .\"	from: @(#)sh.1	8.6 (Berkeley) 5/4/95
 .\" $FreeBSD$
 .\"
-.Dd October 16, 2010
+.Dd October 31, 2010
 .Dt SH 1
 .Os
 .Sh NAME
@@ -40,9 +40,24 @@
 .Nd command interpreter (shell)
 .Sh SYNOPSIS
 .Nm
-.Op Fl /+abCEefIimnPpsTuVvx
+.Op Fl /+abCEefIimnPpTuVvx
 .Op Fl /+o Ar longname
-.Op Fl c Ar string
+.Oo
+.Ar script
+.Op Ar arg ...
+.Oc
+.Nm
+.Op Fl /+abCEefIimnPpTuVvx
+.Op Fl /+o Ar longname
+.Fl c Ar string
+.Oo
+.Ar name
+.Op Ar arg ...
+.Oc
+.Nm
+.Op Fl /+abCEefIimnPpTuVvx
+.Op Fl /+o Ar longname
+.Fl s
 .Op Ar arg ...
 .Sh DESCRIPTION
 The
@@ -1109,7 +1124,12 @@ the process ID and its exit status until
 .Ic wait
 built-in command reports completion of the process.
 .It Li $0
-(zero) Expands to the name of the shell or shell script.
+(zero) Expands to the name of the shell script if passed on the command line,
+the
+.Ar name
+operand if given (with
+.Fl c )
+or otherwise argument 0 passed to the shell.
 .El
 .Ss Special Variables
 The following variables are set by the shell or