Fedora下批量删除文件名中的空格

内容：
    1、建立带空格文件
    2、删除文件名中空格

一、
建立带空格文件：

[admin@localhost empty]$ mkdir "aaa bbb . ccc __  ddd " "mm nn ll oo"
[admin@localhost empty]$ touch "cc .t x t .b a   k" "uu.l _  .c um "
[admin@localhost empty]$ ll
total 12
drwxrwxr-x 2 admin admin 4096 2012-02-22 16:30 aaa bbb . ccc __  ddd
-rw-rw-r-- 1 admin admin    0 2012-02-22 16:30 cc .t x t .b a   k
drwxrwxr-x 2 admin admin 4096 2012-02-22 16:30 mm nn ll oo
-rw-rw-r-- 1 admin admin    0 2012-02-22 16:30 uu.l _  .c um
[admin@localhost empty]$

二、
脚本文件：

[admin@localhost empty]$ touch delblank.sh
-rw-rw-r-- 1 admin admin    0 2012-02-22 16:30 uu.l _  .c um
[admin@localhost empty]$ cat delblank.sh
#for loop in `ls -Al`
#echo `ls -Al | awk '{print $0}'`
#`ls -A` | while read loop ;do tmp=`echo $loop | sed 's/ //g'`;mv "$loop" "$tmp";done
#for loop in `ls -A`
for loop in *
do
        #tmp=`echo $loop | sed 's/ //g'`
        #tmp=`echo $loop | tr -d " "`
        tmp=`echo ${loop// /}`

        if [ "$loop" != "$tmp" ]
        then
        mv "$loop" "$tmp"
        else
                :
                #echo "$loop has no blank"
        fi
done
[admin@localhost empty]$

更改权限：

[admin@localhost zushell]$ chmod u+x 
delblank.sh[admin@localhost empty]$ ll delblank.sh -rwxrwxr-x 1 admin admin 417 2012-02-22 16:28 delblank.sh[admin@localhost empty]$

执行删除空格操作：

[admin@localhost empty]$ ./delblank.sh
[admin@localhost empty]$ ll
total 12
drwxrwxr-x 2 admin admin 4096 2012-02-22 16:30 aaabbb.ccc__ddd
-rw-rw-r-- 1 admin admin    0 2012-02-22 16:30 cc.txt.bak
-rwxrwxr-x 1 admin admin  417 2012-02-22 16:28 delblank.sh
drwxrwxr-x 2 admin admin 4096 2012-02-22 16:30 mmnnlloo
-rw-rw-r-- 1 admin admin    0 2012-02-22 16:30 uu.l_.cum
[admin@localhost empty]$

    另外，本来在shell下通过ls | grep " " |while read line ;do tmp=`echo $line | sed 's/ //g'`;mv "$line" "$tmp";done进行删除，但总是出现如下错误： 

[admin@localhost aa]$ mkdir " aa ss"

[admin@localhost aa]$ ll

total 4

drwxrwxr-x 2 admin admin 4096 2012-02-22 16:39  aa ss

[admin@localhost aa]$ ls | grep " " |while read line ;do tmp=`echo $line | sed 's/ //g'`;mv "$line" "$tmp";done

mv: cannot stat `\033[00m\033[01;34m aa ss\033[00m': No such file or directory

[admin@localhost aa]$ 

刚刚接触shell几天时间，现在还不知道如何解决。各位高手知道的话请提供下。