21 lines
383 B
Bash
Executable File
21 lines
383 B
Bash
Executable File
#!/bin/sh
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check_command() {
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which "$1" >/dev/null 2>&1
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}
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if check_command sha512sum; then
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ret="$(sha512sum "$@")"
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elif check_command shasum; then
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ret="$(shasum -a 512 "$@")"
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elif check_command cksum; then
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ret="$(cksum -q -a sha512 "$@")"
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else
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echo "$0: no suitable sha512sum implementation was found" >&2
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exit 1
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fi
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[ "$?" -eq 0 ] || exit 1
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echo "$ret" | awk '{ print $1 }'
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