67 lines
1.2 KiB
Bash
67 lines
1.2 KiB
Bash
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#!/bin/bash --posix
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usage() {
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# Print out usage instructions for the local script
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#
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# Arguments:
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# None
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#
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# Usage:
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# usage
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#
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# POSIX Compliant:
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# Yes
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#
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printf "Usage: %s %s\n" \
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"$(basename ${0})" \
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"-i \"this is some input\" -t \"this is some more example input\"
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--input <string> | -i <string>
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Example:
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--input \"this is an example input\"
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--test <string> | -t <string>
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Example:
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--test \"this is more example input\""
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}
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parse_args() {
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# Parse input arguments
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#
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# Arguments:
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# Consult the `usage` function
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#
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# Usage:
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# parse_args "$@"
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# - All arguments should be ingested by parse_args first for variable setting
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#
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# POSIX Compliant:
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# Yes
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#
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while :; do
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case ${1} in
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-h | -\? | --help)
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usage # Display a usage synopsis.
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exit
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;;
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--) # End of all options.
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break
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;;
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-i | --input)
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echo "${2}"
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;;
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-t | --test)
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echo "${2}"
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;;
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-?*)
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printf 'Unknown option: %s\n' "$1" >&2
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usage
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;;
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*) # Default case: No more options, so break out of the loop.
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break ;;
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esac
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shift 2
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done
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}
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parse_args "$@"
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