간단한 백업 쉘 스크립트 예제

pwd /home/pjw/study/bash/simpleCopy vi copy.sh

#!/bin/bash now=`(date +"%Y%m%d")` cp -Rp $1 $1_$now echo "Successfully backed up "'"'$1_$now'"'" with the "'"'$1'"'

./copy.sh /home/pjw/test/b.txt Successfully backed up "/home/pjw/test/b.txt_20200117" with the "/home/pjw/test/b.txt" cat /home/pjw/test/b.txt test file cat /home/pjw/test/b.txt_20200117 test file ls -trl /home/pjw/test/ 합계 8 -rw-r--r-- 1 root root 0 1월 17 14:56 a.txt -rw-r--r-- 1 root root 0 1월 17 14:56 a.txt_20200117 -rw-r--r-- 1 root root 10 1월 17 14:57 b.txt -rw-r--r-- 1 root root 10 1월 17 14:57 b.txt_20200117