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59 lines
1.6 KiB
59 lines
1.6 KiB
#!/bin/bash
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display_help() {
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echo "Usage: ${0} [options]"
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echo "Options:"
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echo " -h, --help Show this help message"
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echo " -v, --verbose Enable verbose mode"
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echo " -f, --file <file> Specify a file"
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echo " -n, --number <num> Specify a number (default: 42)"
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}
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# Universelle Parameterparser-Funktion
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parse_args() {
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POSITIONAL=()
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while [[ $# -gt 0 ]]; do
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case "${1}" in
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-h|--help)
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display_help
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exit 0
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;;
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-v|--verbose)
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VERBOSE=true
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shift
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;;
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-f|--file)
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if [[ -z "${2}" || "${2}" == -* ]]; then
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echo "Error: --file requires a non-empty argument."
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exit 1
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fi
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FILE="$2"
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shift 2
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;;
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-n|--number)
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if [[ -z "${2}" || "${2}" == -* ]]; then
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echo "Error: --number requires a non-empty argument."
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exit 1
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fi
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NUMBER="${2}"
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shift 2
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;;
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--) # Explicit end of options
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shift
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break
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;;
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-*) # Unknown option
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echo "Error: Unknown option $1"
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exit 1
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;;
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*) # Positional argument
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POSITIONAL+=("$1")
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shift
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;;
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esac
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done
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set -- "${POSITIONAL[@]}" # Restore positional parameters
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# Defaults
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VERBOSE="${VERBOSE:-false}"
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NUMBER="${NUMBER:-42}"
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}
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