mirror of
https://github.com/notwa/rc
synced 2024-06-01 15:33:07 -07:00
19 lines
348 B
Bash
19 lines
348 B
Bash
#!/usr/bin/env sh
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# YES_ZSH
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# YES_BASH
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# YES_DASH
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bak() {
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[ $# -gt 0 ] || { printf "%s\n" "$0: too few arguments" >&2; return 1; }
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local ret=0
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for f; do
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if [ -e "$f.bak" ]; then
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bak "$f.bak" || ret=1
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fi
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cp -p "$f" "$f.bak" || ret=1
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done
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return $ret
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}
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[ "${SOURCING:-0}" -gt 0 ] || bak "$@"
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