CentOS下shell脚本实现windows的回收站功能

1、在用户执行rm命令时,将文件移动/dump-file/ ,被移动到dump-file 目录下的文件、文件夹以原文件名+删除除的日期格式存放,如 rm.sh 在删除后就会被自动移动到/dump-file/ 下并命名为rm.sh_2011-05-17_11:18:21.bak .

2、此命令在执行时会检测文件或目录的大小,如果文件或目录超过2GB,将不会再将文件移动到回收站,而会直接删除,此功能是为了避免回收站过大而对系统造成影响.

安装方法:

cp -rp /bin/rm /bin/rm.bak
//将系统原有rm 命令改成rm.bak,记住 一定要改成rm.bak,因为回收站脚本需要调用 rm.bak这个命令.
cp -rp rm.sh /bin/rm
//将你的脚本文件rm.sh 覆盖成/bin/rm文件
chmod +x /bin/rm
//赋予/bin/rm可执行权限
echo "0 8  * * 6   /bin/sh  /fmnp/soft/clean-dump.sh " >>/var/spool/cron/tabs/root
//为了防止 /dump-file目录过大,采取每周进行一次删除操作,脚本如下:
#!/bin/bash
/bin/rm.bak -rf /dump-file/*
/bin/rm.bak -rf /tmp/*.rm-dump

保存退出.

mkdir /dump-file && chmod -R 777 /dump-file
//创建/dump-file 目录并给予所有用户可写的权限.

脚本如下:

#!/bin/bash
DumpFile=/dump-file/
File=`echo $line|awk '{print $2}'`
aa=$(echo $1|grep "^-")
DumpLog="`whoami`-`date +%m-%d-%H-%M`.rm-dump"
function TestDir()
{
    Test_Dir=$(echo $line|grep "/") #test if is a directory.
    Test_Dir2=$(echo $line |awk '{print $2}'|grep "^/") # Test if the prameter starts with "/".
    Test_Dir3=$(echo $line |awk '{print $2}'|grep "^/tmp") #
    Dir2=$(echo $line |awk -F/ '{print $2}') #Extract the prameter after the first "/".
    Dir=$(echo $line |awk '{print $2}'|awk -F/ '{print $1}') ##Extract the prameter before the first "/".
    D1=`date +%F_%H:%M:%S.bak`
    Date=`echo $line | awk '{print $2 "_" D1}' D1=$D1`
    DumpLog="`whoami`-`date +%m-%d-%H-%M`.rm-dump"
    if [[ $Test_Dir != "" ]] ;then #If parameters include directory
        if [[ $Test_Dir2 != "" ]] ;then #If parameter starts with "/",as formate /a/b/c/
            if [[ $Test_Dir3 != "" ]];then # this test is for to repaire less command's error.
                rm.bak -rf `echo $line|awk '{print $2}'`
            else
                #echo $line "start with /"
                mkdir $DumpFile$Dir2"_"$D1 2>/tmp/$DumpLog # Create directory as format /dump-file/(first directory after "/")
                mv `echo $line|awk '{print $2}'` $DumpFile$Dir2"_"$D1
                echo $DumpFile$Dir2"_"$D1
            fi
        else #Means that parameter starts without "/" ,as format a/b/c
            mkdir $DumpFile$Dir$D1 #Create directory as format /dump-file/(first directory before "/")
            mv `echo $line|awk '{print $2}'` $DumpFile$Dir$D1
            echo $line "starts before /"
        fi
    else
        Date=`echo $line | awk '{print $2 "_" D1}' D1=$D1`
        mv `echo $line|awk '{print $2}'` $DumpFile$Date
    fi
}
if [[ "$1" != "" ]] ;then #If the frist parameter is not empty.
    if [[ $aa != "$1" ]];then #If the first parameter not start with "-".
        du -s "$@" 2>/tmp/$DumpLog |while read line
        do
            size=`echo $line | awk '$1 >2000000{print $1}'`
            if [ "$size" > "1900000" ];then
                #echo "Lager than 2Mb"
                rm.bak -rf `echo $line|awk '{print $2}'`
            else
                TestDir
            fi
        done
    else
        if [[ "$2" != ""  ]]; then
            until [ "$2" == ""  ]
            do
                 #echo "function is running"
                 du -s $2 2> /tmp/$DumpLog |while read line
                 do
                    size=`echo $line | awk '$1 >2000000{print $1}'`
                    if [ "$size" > "1900000" ];then
                        #echo "Lager than 2Mb"
                        rm.bak -rf $2
                    else
                        TestDir
                    fi
                    shift
                 done
                 shift
            done
        else
            echo -e "No file detected./nTry 'rm --help' for more information. "
        fi
    fi
else
    echo -e "rm: missing operand /nTry 'rm --help' for more information."
fi