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25 lines
572 B
Bash
Executable File
25 lines
572 B
Bash
Executable File
#!/bin/sh
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##
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## SPDX-FileCopyrightText: 2023 Benjamin Grande M. S. <ben.grande.b@gmail.com>
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##
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## SPDX-License-Identifier: CC-BY-SA-3.0
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##
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## Credits: https://stackoverflow.com/a/44644933
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## From any file, get its current directory.
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## usage: get-script-dir $0
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set -eu
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test -n "${1-}" || exit 1
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prg="$1"
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if ! test -e "${prg}"; then
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case "${prg}" in
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(*/*) exit 1;;
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(*) prg=$(command -v -- "${prg}") || exit 1;;
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esac
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fi
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dir="$(cd -P -- "$(dirname -- "${prg}")" && pwd -P)" || exit 1
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prg="${dir}/$(basename -- "${prg}")" || exit 1
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printf '%s\n' "${dir}"
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exit 0
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