From 57a40f7d08b8fe6eaaff8ed8dfac1f293e2359a1 Mon Sep 17 00:00:00 2001
From: Jilles Tjoelker <jilles@FreeBSD.org>
Date: Sun, 31 Oct 2010 23:03:11 +0000
Subject: [PATCH] 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
---
 bin/sh/sh.1 | 28 ++++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/bin/sh/sh.1 b/bin/sh/sh.1
index 34999691e7c..d5296922cea 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 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 the
 .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