Shell script

exodist · 08-25-2003, 08:04 PM

I am making a shell script, I was wondering if I could get a brief howto or link to one that explains how you can do the following:

name.sh --prefix=whatever

and then have the prefix variable set

basically what do I put in the shellscript for it to recognise the --prefix command line option?

AltF4 · 08-25-2003, 08:45 PM

"man getopt" should answer your questions how to parse parameters

exodist · 08-25-2003, 08:55 PM

thanks, this will help a lot.

slapNUT · 08-25-2003, 09:22 PM

I don't remember where I found this but I like to start all my scripts this way. I gives you a good starting point. I added the --prefix= but you can add as many options as you like this way.

Code:

!/bin/bash

function usage ()
{
       echo "Usage:"
       echo "        script [--test|--help|--version] [--prefix=<prefix>]"
}

while test "$1" != "" ; do
        case $1 in
                --prefix=*)
                        prefix=`echo $1|sed 's/^.*\=//'`
                        echo "Prefix set to $prefix"
                ;;
                --test|-t)
                        echo "you used the --test option"
                ;;
                --help|-h)
                        usage
                        exit 0
                ;;
                --version|-v)
                        echo "script version 0.0.1"
                        exit 0
                ;;
                -*)
                        echo "Error: no such option $1"
                        usage
                        exit 1
                ;;
        esac
        shift
done

exodist · 08-25-2003, 09:25 PM

that is great, thanx a lot!