如何我们不小心在Linux系统中执行了以下命令，
rm -rf /
如果我们误删了文件，如何恢复呢？
这个时候，我们今天的主角 trash-cli 就要出场了，他实现了类似windows中回收站的功能。
trash-cli
trash-cli的项目地址 trash-cli https://github.com/andreafrancia/trash-cli
I. 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
II. 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
现在我们终于可以放心的删文件了，如果误删，就可以轻松找回来。