第一个里程碑 测试命令 把文件/etc/services压缩到/tmp
[root@oldboyedu-39 ~]# cd / && tar zcf /tmp/etc.tar.gzetc/services
[root@oldboyedu-39 /]# ls -l /tmp/
total 404
w-r--r--. 1 root root 127314Aug 9 18:16 etc.tar.gz
[root@oldboyedu-39 /]# cd / && tar zcf /tmp/etc-$(date+%F_%H).tar.gz etc/services
[root@oldboyedu-39 /]# ls -lrt /tmp/
total 532
-rw-------. 1 root root 439Aug 9 11:42 crontab.iCpuPc
-rw-r--r--. 1 root root 127314 Aug 9 18:16 etc.tar.gz
-rw-r--r--. 1 root root127314 Aug 9 18:18etc-2017-08-09_18.tar.gz
vim/server/scripts/etc-bak.sh
cd / && tar zcf /tmp/etc-$(date +%F_%H).tar.gz etc/services
[root@oldboyedu-39 /]# /bin/sh /server/scripts/etc-bak.sh
[root@oldboyedu-39 /]# /bin/sh /server/scripts/etc-bak.sh>/dev/null 2>&1
[root@oldboyedu-39 /]# ls -lrt /tmp/
total 532
-rw-r--r--. 1 root root 127314 Aug 9 18:23 etc-2017-08-09_18.tar.gz
[root@oldboyedu-39 /]# ls -lrt /tmp/
total 532
-rw-r--r--. 1 root root 127314 Aug 9 18:24 etc-2017-08-09_18.tar.gz
#bak /etc/serves
00 */2 * * * /bin/sh /server/scripts/etc-bak.sh >/dev/null2>&1