centos7命令补全

# yum install -y epel-release

# yum install -y bash-completion

2.实例

[root@localhost ~]# systemctl  re [tab][tab]

reboot                 reenable               reload                 reload-or-restart      reload-or-try-restart  rescue                 reset-failed           restart

[root@localhost ~]# systemctl restart network [tab][tab]

network-online.target  network.service

[root@localhost ~]# systemctl restart network.service [tab]

centos7命令补全

原文：http://blog.51cto.com/11060853/2105802