59201dd7a0
This is slightly inelegant, as the old style echo foo echo blah chmod a+x $3 doesn't work anymore; the stuff you wrote to stdout didn't end up in $3. You can rewrite it as: exec >$3 echo foo echo blah chmod a+x $3 Anyway, it's better this way, because now we can tell the difference between a zero-length $3 and a nonexistent one. A .do script can thus produce either one and we'll either delete the target or move the empty $3 to replace it, whichever is right. As a bonus, this simplifies our detection of whether you did something weird with overlapping changes to stdout and $3.
9 lines
193 B
Text
9 lines
193 B
Text
echo 'echo hello' >touch1.do
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redo touch1
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[ -e touch1 ] || exit 55
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rm -f touch1
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echo 'touch $3' >touch1.do
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redo touch1
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[ -e touch1 ] || exit 66
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[ -z "$(cat touch1)" ] || exit 77
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rm -f touch1.do
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