玩过Linux的同学应该都知道这个要命的命令,此命令一出,系统几乎废了。

rm -rf /

虽然一再强调rm的时候要注意,但是还是会有同学犯错误删文件,有什么办法能够减少此类事情的发生呢?

今天老高就要介绍此工具----- trash-cli。他实现了类似回收站的功能,以后删除的时候就有了后悔药。

trash-cli

trash-cli的项目地址 trash-cli

安装

trash-cli的安装很简单

cd /tmp
https://github.com/andreafrancia/trash-cli
cd trash-cli
sudo python setup.py install

安装成功后我们的系统就有了以下工具

➜  ~  ll /usr/bin/|grep trash
-rwxr-xr-x   1 root root     123  5月 28 19:38 trash
-rwxr-xr-x   1 root root     125  5月 28 19:38 trash-empty
-rwxr-xr-x   1 root root     124  5月 28 19:38 trash-list
-rwxr-xr-x   1 root root     123  5月 28 19:38 trash-put
-rwxr-xr-x   1 root root     127  5月 28 19:38 trash-restore
-rwxr-xr-x   1 root root     122  5月 28 19:38 trash-rm

功能说明

trash == trash-put == 删除
trash-empty 清空
trash-list 列出回收站
trash-restore 恢复文件
trash-rm  删除回收站中指定文件

如何使用

替换命令

为了安全着想,我们先将rm命令替换为trash

vim /etc/bashrc

添加以下内容,替换系统删除命令。

根据作者的README文件,建议还是轻易不要把rm做替换,下面的替换作废。

alias log='cd /var/log'

安全删除

alias rm='trash'

列出回收站

alias rl='trash-list'

作者原文

Can I alias rm to trash-put?
You can but you shouldn't. In the early days I thought it was good idea do that but now I changed my mind.
The interface of trash-put seems to be compatible with rm it has a different semantic that will cause you problems. For example, while rm requires -R for deleting directories trash-put does not.
But sometimes I forgot to use trash-put, really can't I?
You may alias rm to something that will remind you to not use it:
alias rm='echo "This is not the command you are looking for."; false'
If you really want use rm simply prepend a slash:
rm file-without-hope
Note that Bash aliases are used only in interactive shells, so using this alias should not interfere with scripts that expects to use rm.

所以新的替换是

# 使用rm前确认
alias rm='echo " This is not the command you are looking for.If you really want use rm simply prepend a slash"; false'

以后执行rm的话,就会出现以下情况

➜  ~  rm
 This is not the command you are looking for.If you really want use rm simply prepend a slash

以后如果真的要删除的话,请使用\rm 真的很没用的文件,而使用trash 需要删除的文件

完成后输入source /etc/bashrc是修改的别名生效。

常用操作

# 安全删除
rm ./*

# 查看回收站
➜  /tmp  rl
2015-05-28 19:59:54 /tmp/redis-stable

# 清空回收站
trash-empty

# 清空10天以前放入回收站的文件
trash-empty 10

# 还原文件
➜  /tmp  trash-restore
   0 2015-05-28 19:59:54 /tmp/redis-stable
What file to restore [0..0]: 输入对应序号还原

标签: bash, trash, trash-cli

已有 3 条评论

  1. imlonghao.com imlonghao.com

    自己用OpenVZ开了台小鸡,然后进去 rm -rf /* 。这算爽

    1. 不错,你可以试试看能又能救回来

    2. imlonghao.com imlonghao.com

      通常,能就回来的可能性为0

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