[X-Unix] Hiding apps from the command line

[Eugene Lee]

On Fri, Mar 26, 2004 at 05:05:10PM +0000, Stroller wrote:
: 
: Also, if you're going to use $1 ...$9... as variables in your script, 
: it's also worth including this line in the script before you do so:
:  if [ -z "$1" ]
:   then
:     echo "ERROR! This script requires a commandline argument, silly!" 
: >&2
:     exit 1
:   fi

Even better, let the shell count the number of arguments:

	if [ $# -eq 0 ]; then
		echo "Usage: `basename $0` blah blah blah"
		exit 1
	fi

: Also, check out the `getopts` construct on pages 138 - 139 of the 
: Advanced Bash???Scripting Guide (free download from the LDP).

OS X ships with getopt(1).


-- 
Eugene Lee
http://www.coxar.pwp.blueyonder.co.uk/