shell脚本来实现类似回收站功能

向右看齐 2022-05-17 09:11 170阅读 0赞

背景：  
工作中，总会有人聊到曾经做过的最坑的事情，其中当然少不了rm命令，比如最出名的rm -rf /\*命令。  
受HDFS回收站机制的启发，我即兴的写了一个shell脚本来实现类似的功能。

具体配置：  
\[dong@localhost ~\]$ sudo touch /usr/bin/delete  
\[dong@localhost ~\]$ sudo chmod +x /usr/bin/delete  
\[dong@localhost ~\]$ sudo vim /usr/bin/delete

#!/bin/bash
    
    trash_dir=${HOME}/.Trash/$(date +%Y%m%d%H%M%S)
    
    function move_item(){
      item=$1
      full_path=$2
      full_dir=$(dirname ${full_path})
      mkdir -p ${trash_dir}${full_dir}
      mv ${item} ${trash_dir}${full_path}
      if [[ $? -eq 0 ]]; then
        echo "Moved ${item} to ${trash_dir}${full_path}"
      fi
    }
    
    if [[ $# -eq 0 ]] || $(echo "$1" |grep -Ewq '\-h|\-\-help'); then
      echo "${0} [-f] [*|FILE]"
      exit 2
    fi
    
    for item in $@; do
      if $(echo ${item} |grep -vq '^-'); then
        if $(echo ${item} |grep -q '^/'); then
          full_path=${item}
        else
          full_path=$(pwd)/${item}
        fi
        if $(echo $@ |grep -Ewq '\-f|\-rf|\-fr'); then
          move_item ${item} ${full_path}
        else
          echo -n "Move ${item} to ${trash_dir}${full_path}? [y/n] "
          read yorn
          if $(echo ${yorn} |grep -Ewq 'y|Y|yes|YES'); then
            move_item ${item} ${full_path}
          fi
        fi
      fi
    done

\[dong@localhost ~\]$ mkdir tmp  
\[dong@localhost ~\]$ cd tmp  
\[dong@localhost tmp\]$ mkdir 1 2 3  
\[dong@localhost tmp\]$ echo 1 > 1/1.txt  
\[dong@localhost tmp\]$ echo 2 > 2/2.txt  
\[dong@localhost tmp\]$ echo 3 > 3/3.txt  
\[dong@localhost tmp\]$ touch a b c  
\[dong@localhost tmp\]$ ln -s a d  
\[dong@localhost tmp\]$ delete 1

Move 1 to /home/dong/.Trash/20160415114210/home/dong/tmp/1? [y/n] y
    Moved 1 to /home/dong/.Trash/20160415114210/home/dong/tmp/1