linux下回收站

  ========================删除程序==========================

#! /bin/bash
currpath=`pwd`
(($#==0)) && { echo "No paraments!";exit 1; }
#show the contents in ~/.trash

if [ $# = 1  -a $1 = '-s' ] ; then
   #ls
   ls  ~/.trash
   exit
fi

if [ $# = 1  -a $1 = '-l' ] ; then
   #ls -l
   ls -l ~/.trash
   exit
fi


#del the contents in ~/.trash
if [ $# = 1  -a $1 = '-q' ] ; then
   rm -fr  ~/.trash/*
   exit
fi


for i in $*
do
        cd $currpath
##################
cd `dirname $i`
#$tmpbasename=`basename $i`
echo $tmpbasename
#if [ "\*" = $tmpbasename ] ; then
#         `ls|del`
#fi
##################

        if [ ${i:0:2} = "./" ] ; then
                i=${i:2}
        fi
cd $currpath
        if [ -f $i  -o  -d $i  ] ;  then
                cd `dirname $i`
                #get the file name  
                tmpname=$(find $(pwd) -maxdepth 1 -name $(basename $i) | tr "/" "=")
                #at home path ,if .trash is not a directory ,then create it
                cd ~
                if [ ! -d .trash ] ; then
                        mkdir .trash
                fi
                #test if the file already exists
                cd ~/.trash
                if [ -f  $tmpname ] ; then
                        echo  "exist!"
                        nowtime=`date "+%Y%m%d%H%M%S"`
                        tmpname=${tmpname}_${nowtime}
                fi
                #change into the current path
                cd $currpath
                mv -f $i  ~/.trash/${tmpname}
        else
                echo "$i: No such file or directory!"
        fi
done

==================恢复删除文件======================

#! /bin/bash
#########################################################
#  PRGM : undel
#########################################################
currpath=`pwd`
#########################################################
#
# whether the num of arguments is 0
#
#########################################################
if [ $# = 0 ] ; then
        echo "No arguments"
        exit  1
fi
##########################################################
for i in $*
do
        tmp2path=`dirname $i`
        if test "." = `dirname $i`      #the current path is .
        then
echo 1
            tmppath=`pwd| tr "/" "=" `
        elif test "./" = ${tmp2path:0:2}        #the  path is beginned with ./
        then
echo 2      tmppath3=`echo ${tmp2path:1}`
            tmppath="`pwd`$tmppath3"
        elif test "/" = ${tmp2path:0:1}   #the path is beginned with not . and not ./
        then
echo 4
         tmppath=`dirname $i  | tr "/" "=" `
        else
echo 3
            tmppath3="/${tmp2path}"
            tmppath="`pwd`$tmppath3"    
        #the path is beginned with /
        fi

        tmppath=`echo $tmppath | tr "/" "="`

        cd $(dirname $i)
        #get the file name  
        tmpname="${tmppath}=`basename $i`"
        echo $tmpname
        cd ~/.trash
        if [ ! -f $tmpname   -a ! -d $tmpname ] ; then
                echo "No such file in the .trash!";
                continue
        fi
        tmppath2=` echo $tmpname | tr "=" '/' `
        mv $tmpname  `basename $i`
        mv `basename $i` `dirname $tmppath2`
        cd $currpath
        echo "${tmpname} recover successfully... "    
done


=====================文档=======================

1)del
         -l     show the detail of  files in ~/.trash
         -s     show the name  of files in ~/.trash  only
         -f     del the files as `rm -f`
         -q     clean ~/.trash

2)undel
        undel   f1 f2 f3 /root/f5

3)del & undel e.g.
   args                   stat             recover stat          stat
------------------ + --------------- + ----------------------------- + --------
del a.txt                 OK         undel a.txt                    OK
del a.txt b.txt         OK         undel a.txt b.txt             OK
del /root/a.txt         OK         undel /root/a.txt            OK
del lib/*                  OK         undel lib/a.txt
                                          undel lib/b.txt                OK
                                          ....

del ./lib/*               OK           undel lib/a.txt
                                           undel lib/b.txt              OK
                                           ....

del lib/a.txt lib/b.txt   OK         undel  lib/a.txt
                                           undel  lib/b.txt             OK
del ./lib/a.txt           OK          undel ./lib/a.txt            OK

4)readme
        if there is a file which name and directory are  as  same as  the currentfile's ,
  and create a file as =home=cnscn=a.txt_20041129000248.If you want recover it can cp it
  to  /home/cnscn/a.txt (Of course there must not be a.txt in /home/cnscn now)



=====================示例=======================

[root@localhost ~/bin]$ pwd
/home/user/cnscn/bin

[root@localhost ~/bin]$ ls
a.txt  b.txt  del  undel

[root@localhost ~/bin]$ ls /root/a.txt
/root/a.txt

[root@localhost ~/bin]$ ls ~/.trash

[root@localhost ~/bin]$ del a.txt /root/a.txt

[root@localhost ~/bin]$ ls ~/.trash
=home=user=cnscn=bin=a.txt  =root=a.txt

[root@localhost ~/bin]$ ls a.txt

[root@localhost ~/bin]$ ls /root/a.txt

[root@localhost ~/bin]$ undel a.txt /root/a.txt
=home=user=cnscn=bin=a.txt recover successfully...
=root=a.txt recover successfully...

[root@localhost ~/bin]$ ls ~/.trash

[root@localhost ~/bin]$