Linux 安全rm

先将shell脚本放在某个全局路径下，如/usr/local/bin

#!/bin/sh
# safe rm
# Don't remove the file, just move them to a temporary directory.
# Files are grouped by remove time.
# e.g.
#   # pwd => /home/work/
#   > rm -r -f aa
#   'aa' will move to ~/.TrashHistory/20141018/aa@120111@_home_work_aa
RM_BACKUP_PATH=~/.Trashhistory
if [ ! -d "$RM_BACKUP_PATH" ]; then
   mkdir "$RM_BACKUP_PATH"
fi
function safe_rm() {
   # skip cmd option, e.g. '-rf' in 'rm -rf a b' or '-r/-f' in 'rm -r -f a b'
   if [ $# -lt 1 ]; then
       echo 'usage: rm -f [-dPRrvW] file ...'
       exit 1
   fi
   first_char=${1:0:1}
   until [ ! "$first_char" = "-" ]
   do
       shift
       first_char=${1:0:1}
   done
   # check param
   if [ $# -lt 1 ]; then
       echo 'usage: rm -f [-dPRrvW] file ...'
       exit 1
   fi
   today=`date +"%Y%m%d"`
   mvpath=${RM_BACKUP_PATH}/$today
   # support for multi version
   timestamp=`date +"%H%M%S"`
   # create dir if path non-exist
   if [ ! -d $mvpath ]; then
       mkdir $mvpath
   fi
   until [ $# -eq 0 ]
   do
       # fetch absolute path of the file
       fpath=$1
       fchar=`echo "${fpath:0:1}"`
       if [ "$fchar" = "/" ]; then
           dist_path="_${fpath}"
       else
           abs_fpath=`pwd`/$fpath
           dist_path="${fpath}@${timestamp}@${abs_fpath}"
       fi
       # substitue '/' to '_'
       final_dist_path=${dist_path//\//_}
       # mv to temp trash
       mv $fpath $mvpath/$final_dist_path
       # next file
       shift
   done
}

　　然后alias

alias rm=". /usr/local/bin/safe_rm.sh && safe_rm "

　　并source