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UGU: Unix Guru Universe - Unix Tip #4468- June 5, 2025
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Unix Tip #4468- June 5, 2025
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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