CentOS7命令補全的一個小技巧

1、場景介紹

不少系統管理員傾向於使用CentOS6下的/etc/init.d的服務管理方式對服務進行管理，而不太習慣CentOS7下的systemctl方式對服務進行管理，他們以爲CentOS7下的systemctl的命令補全功能不太完善，其實這是一個「誤會」，由於如今安裝操做系統的時候，選用的模板每每是最小化安裝，最小化安裝的狀況下，命令補全的包是沒有安裝上去的，咱們經過如下幾個命令，就能很快的定位和解決問題。

2、處理方法

# yum -y install bash-completion
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package bash-completion.noarch 1:2.1-6.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

===================================================================================
 Package              Arch        Version             Repository              Size
===================================================================================
Installing:
 bash-completion      noarch      1:2.1-6.el7         local-centosbase7       85 k

Transaction Summary
===================================================================================
Install  1 Package

Total download size: 85 k
Installed size: 259 k
Downloading packages:
bash-completion-2.1-6.el7.noarch.rpm                        |  85 kB  00:00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : 1:bash-completion-2.1-6.el7.noarch                              1/1 
  Verifying  : 1:bash-completion-2.1-6.el7.noarch                              1/1 

Installed:
  bash-completion.noarch 1:2.1-6.el7                                               

Complete!

# systemctl start zabbix-java-gateway.service (這裏包含有tab鍵)
Display all 167 possibilities? (y or n)^C

到此，問題獲得解決。