/usr/web/sources/contrib/someone/root/rc/bin/cpdiffers

Plan 9 from Bell Labs’s /usr/web/sources/contrib/someone/root/rc/bin/cpdiffers


#!/bin/rc
# cpdiffers new old - copy new to old only if they differ; always remove new
rfork e
new=$1
old=$2
if (cmp -s $new $old)
	rm -f $new
if not
	mv $new $old

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