Created
August 10, 2016 13:18
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| #! /bin/bash | |
| # usage watch -n<sec> backup <filename> | |
| set -eu | |
| : $1 | |
| dir=$1.backup | |
| mkdir -p $dir | |
| touch $dir/00_00_00_00_00_$1 | |
| cat $1 && diff -Nb $1 $(ls $dir/*_$1 | tail -n1) >/dev/null || cp $1 $dir/$(date +%m_%d_%H_%M_%S)_$1 |
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