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UGU: Unix Guru Universe - Unix Tip #4468- June 5, 2019 - Home : Help : Today's Tip
Unix Tip #4468- June 5, 2019

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



NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted by various unix admins around the globe. UGU suggest you read and test each tip in a non-volitile environment before placing into production.


LAST 5 TIPS
4467 - KEEPING PEOPLE OUT
4466 - STRING STRIPPING
4465 - TEXT FILE CASE REVERSAL
4464 - VI MAN PAGES
4463 - VI LINE NUMBERS


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