11 lines
356 B
Bash
Executable File
11 lines
356 B
Bash
Executable File
#!/bin/sh
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#-*-mode:sh;indent-tabs-mode:nil;tab-width:2;coding:utf-8-*-┐
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#───vi: set net ft=sh ts=2 sts=2 fenc=utf-8 :vi─────────────┘
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DD=${DD:-$(command -v dd)} || exit
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$DD if="$1" of="$1.bak" bs=4096 count=1 conv=notrunc 2>/dev/null
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"$@"
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rc=$?
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$DD if="$1.bak" of="$1" bs=4096 count=1 conv=notrunc 2>/dev/null
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exit $rc
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