解决 debian TAB 键不能自动补全命令的原因

柔光的暖阳◎ 2022-06-17 12:47 611阅读 0赞

http://hi.baidu.com/liheng\_2009/blog/item/607b09614ba93f6c0d33fa6b.html

般情况，命令行输入 sudo apt-get ins 按 tab ，它后面会自动补全为 install 如果右面写了包的名的一部分，按 tab 它也会自动完成或列出候选的，这次装了个 debian 5 突然不好使了

问了一圈都不知道，后来还是在老外的 blog 上找到答案：

即 在 .bash\_profile 里加  
  
if \[ -f /etc/bash\_completion \]; then  
. /etc/bash\_completion  
fi

就 ok 了

链接：[http://gumelta.com/add-bash-completion-in-debian.php][http_gumelta.com_add-bash-completion-in-debian.php]

完整 copy 下来吧：

Add Bash Completion In Debian

ash completion is a useful tool for completion of file paths, commands etc. By default it is enabled on Ubuntu but not on Debian. With two simple steps it can also be enabled on Debian.  
  
1. Install bash-completion  
  
First of all we need the install the according package:  
  
apt-get install bash-completion  
  
2. Add it to the bash profile  
  
Either edit the ~/.bash\_profile file to enable it only for a given user or edit /etc/profile to add it system-wide. Add the following code:  
if \[ -f /etc/bash\_completion \]; then  
. /etc/bash\_completion  
fi  
3. Try it  
  
In order for it to work you have to log out and relogin and then you can make use of bash completion the usual way. E.g. issue:  
apt-g  
  
and then press the TAB key once and the command will be completed to apt-get. Or issue this:  
apt  
  
and then press TAB key twice. You can also try with  
apt-get install apa  
  
and then press TAB key once to complete as far as possible and a second time to list all options.

[http_gumelta.com_add-bash-completion-in-debian.php]: http://gumelta.com/add-bash-completion-in-debian.php