在本文中，我们将向您展示 如何安装 Bash 自动完成功能 在 CentOS/RHEL 或者 Fedora Linux.
您需要使用 YUM 命令来安装 bash-CentOS/RHEL 上的完成包或 Fedora Linux。
输入以下命令进行安装 bash- 完成包：

# yum install bash-completion -y

示例输出：

# yum install bash-completion -y
Failed to set locale, defaulting to C
Loaded plugins: fastestmirror
Setting up Install Process
Loading mirror speeds from cached hostfile
 * base: mirrors.viralvps.com
 * extras: ftp.nluug.nl
 * rpmforge: ftp.nluug.nl
 * updates: mirror.widexs.nl
Resolving Dependencies
--> Running transaction check
---> Package bash-completion.noarch 0:20060301-1.el6.rf will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=======================================================================================
 Package                Arch          Version                    Repository       Size
=======================================================================================
Installing:
 bash-completion        noarch        20060301-1.el6.rf          rpmforge        125 k

Transaction Summary
=======================================================================================
Install       1 Package(s)

Total download size: 125 k
Installed size: 470 k
Downloading Packages:
bash-completion-20060301-1.el6.rf.noarch.rpm                    | 125 kB     00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing : bash-completion-20060301-1.el6.rf.noarch                            1/1
  Verifying  : bash-completion-20060301-1.el6.rf.noarch                            1/1

Installed:
  bash-completion.noarch 0:20060301-1.el6.rf

Complete!

要使用自动竞赛功能，您需要按 TAB 键（例如： yum install ht ）：

就这些！