From: H. Peter Anvin <hpa@zytor.com>
Date: Fri, 23 Sep 2005 19:48:39 GMT
Subject: Re: /bin/sh portability question
Message-ID: <43345C17.7060402@zytor.com>
In-Reply-To: <20050923075058.GA25473@bohr.gbar.dtu.dk>

Peter Eriksen wrote:
> 
> 2) In many of the shell scripts there is the idiom:
> 
>       #!/bin/sh
>       
>       cmd=
>       path=$(dirname $0)
>       case "$#" in
>       0)      ;;
>       *)      cmd="$1"
>               shift
>  
>    When run, this gives the error:
> 
>       ./git.sh: syntax error at line 4: `path=$' unexpected
> 
>    I think it's because (on my Solaris at least), sh is really 
>    sh and is not symlinked to bash, and sh doesn't like that 
>    syntax.  Are there any good solutions to this other than
>    making the administrators actually change sh to a symlink,
>    (which I tried)?
> 

I think $(foo) is required by POSIX.

	-hpa