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Add exit 0 and a note about proper option processing

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edited Mar 26, 2015 at 20:12

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It doesn't have to be harder than this.

case $1 in
 -[h?]|] | --help)
    cat <<-____HALP
        Usage: ${0##*/} [ --help ]
        Outputs a friendly help message if you can figure out how.
____HALP 
 ;;       exit 0;;
esac

If you use getopts for option processing, use that to identify the option; but the action is going to look more or less similar (and IMNSHO getopts doesn't really offer anything over a simple while ... shift loop).

It doesn't have to be harder than this.

case $1 in
 -[h?]|--help)
    cat <<-____HALP
        Usage: ${0##*/} [ --help ]
        Outputs a friendly help message if you can figure out how.
____HALP ;;
esac

It doesn't have to be harder than this.

case $1 in
 -[h?] | --help)
    cat <<-____HALP
        Usage: ${0##*/} [ --help ]
        Outputs a friendly help message if you can figure out how.
____HALP 
        exit 0;;
esac

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answered Mar 26, 2015 at 18:24

tripleee

191.6k
37
317
367

It doesn't have to be harder than this.

case $1 in
 -[h?]|--help)
    cat <<-____HALP
        Usage: ${0##*/} [ --help ]
        Outputs a friendly help message if you can figure out how.
____HALP ;;
esac

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