Unix Tip: SAVE A COPY

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3452 - July 23, 2011

http://www.ugu.com/sui/ugu/show?tip.today

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SAVE A COPY

Ever edited a file, then wished
you'd saved a copy first?

This script will save it for you.
It even handles multiple files,
and multiple edits of the same file.

############### Cut here ##########
#!/bin/ksh
# My vi : Save a backup of the file(s) to edit
for file in $* ; do
if [[ -a $file ]] ; then
basefile=`basename $file`
cp $file ~/bak/${basefile}.`date +%C%y%m%d%H%M%S`
fi
done
/usr/bin/vi $*
############### Cut here ##########

You'll need to create a directory
called 'bak' in your $HOME directory,
and it would be a good idea to set up
a cron job to clear out old copies
periodically.

This tip generously supported by:
gordon.morrison@vf.vodafone.co.uk

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