23 lines
375 B
Bash
Executable File
23 lines
375 B
Bash
Executable File
#!/usr/bin/env bash
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set -eo pipefail
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if [[ "$1" == "-h" || "$1" == "--help" ]]; then
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cat <<EOF
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Usage: $(basename "$0") [-h] <command>
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Check if a command is available.
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Options:
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-h, --help Show this help message
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Arguments:
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command Command to check
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Returns 0 if command exists, 1 otherwise.
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EOF
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exit 0
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fi
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[ -n "$1" ] && command -v "$1" || exit 1
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