Rhel7 tar创建指定目录的压缩的归档文件，例如backup.tar.bz2
-z：有gzip属性的
-j：有bz2属性的
-Z：有compress属性的
[root@desktop0 ~]# tar -cjf /root/sysconfig.tar.bz2 /etc/sysconfig/
tar: Removing leading `/' from member names
[root@desktop0 ~]# ls
anaconda-ks.cfg example-ca.crt sysconfig.tar.bz2
[root@desktop0 ~]# tar -tf sysconfig.tar.bz2
etc/sysconfig/
etc/sysconfig/selinux
etc/sysconfig/ip6tables-config
etc/sysconfig/iptables-config
……
