Linux Shell: The simplest system backup script in history

#!/bin/bash# the is script backup /etc directory! # author: zhangjun  (e-maill: [email protected]) date=$ (date +%y%m%d) size=$ (du  -SH /ETC) if [ -d /tmp/dbbak ]         then                echo  "date:  $date!"  > /tmp/dbbak/dbinfo.txt                 echo  "size:  $size!"  >> /tmp/dbbak/dbinfo.txt                 cd /tmp/dbbak                 tar -zcf etc_$date.tar.gz /etc dbinfo.txt & > /dev/null                rm -rf /tmp/dbbak/dbinfo.txt         Else                mkdir  /tmp/dbbak                 echo  "date:  $date!"  > /tmp/dbbak/dbinfo.txt                 echo  "size:  $size!"  >> /tmp/dbbak/dbinfo.txt                 cd /tmp/dbbak                 tar -zcf etc_$date.tar.gz /etc dbinfo.txt & > /dev/null                 rm -rf /tmp/dbbak/dbinfo.txtfi

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Linux Shell: The simplest system backup script in history