Created
July 8, 2023 17:56
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options parsing in bash
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| declare -A FLAGS | |
| declare -a ARGS | |
| while [[ $# -gt 0 ]]; do | |
| key="$1" | |
| case $key in | |
| -h|--help) | |
| FLAGS[--help]=1 | |
| shift | |
| ;; | |
| -p|--pause) | |
| FLAGS[--pause]=1 | |
| shift | |
| ;; | |
| *) | |
| if [[ "$1" = --no-* ]] | |
| then | |
| FLAGS[$1]=1 | |
| shift | |
| elif [[ "$1" = --* ]] | |
| then | |
| FLAGS[$1]=1 | |
| STEPS=1 | |
| shift | |
| elif [[ "$1" = -* ]] | |
| then | |
| echo "Error: unknown flag $1, use double-hypen for step flags" | |
| exit 1 | |
| else | |
| ARGS+=("$1") | |
| shift | |
| fi | |
| ;; | |
| esac | |
| done | |
| if [[ ${FLAGS[--help]} = 1 ]]; then usage; exit; fi | |
| hostname="${ARGS[0]:-foo}" | |
| adminemail="${ARGS[1]:-bar}" |
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