重命名一堆文件，但仅部分标题

这里是我采取在它，使用bash，awk和mv。

如果从awk的角度来看文件名，filename只是一个用空格分隔的字段的字符串，特别有趣的是$ 3字段必须用零填充。下面的脚本正是这样做的。确保将脚本放置在与要重命名的文件相同的目录中并运行它。另外，请确保它可以通过以下方式执行chmod 755 renamerScript.sh

演示版

testdir:$ ls
Aaaa.bb - 125 tag tag_tag 9tag  Aaaa.bb - 2 tag tag_tag 9tag  Aaaa.bb - 4207 tag tag_tag 9tag  BACKUP/  renamerScript.sh*

testdir:$ ./renamerScript.sh                                                                                                                          
mkdir: cannot create directory ‘BACKUP’: File exists
cp: omitting directory ‘BACKUP’
renaming Aaaa.bb - 125 tag tag_tag 9tag to Aaaa.bb - 000125 tag tag_tag 9tag 
renaming Aaaa.bb - 2 tag tag_tag 9tag to Aaaa.bb - 000002 tag tag_tag 9tag 
renaming Aaaa.bb - 4207 tag tag_tag 9tag to Aaaa.bb - 004207 tag tag_tag 9tag 

testdir:$ ls
Aaaa.bb - 000002 tag tag_tag 9tag  Aaaa.bb - 000125 tag tag_tag 9tag  Aaaa.bb - 004207 tag tag_tag 9tag  BACKUP/  renamerScript.sh*

脚本

#!/bin/bash
# renamerScript.sh
# Author: Serg Kolo
# Date: Oct 17, 2015
# Purpose : renaming specific files
# Written for: http://askubuntu.com/q/686794/295286

# Make sure you have backup of the files !!!
# comment/uncomment if you do want to do a backup

mkdir BACKUP
cp -t BACKUP *

# This is where the magic happens:
# If we look at filenames from the awk point of view
# "Aaaa.bb - 2 tag tag_tag 9tag" are all really 
# space-separated fields. Field #3 is the one we need to edit.
# What we can do is pad it with zeros and then chop off 6 
# characters from the end, and store that as new filename
# The rest is just doing mv command from old filename to new
# And also making sure we're operating on files , not directories
# and not renaming the script file,too

for FILENAME in * ; 
do  
 if [ -f "$FILENAME" -a "$FILENAME" != "renamerScript.sh" ]; then

   OLDFILENAME="$FILENAME"
   NEWFILENAME=$(echo "$FILENAME" | awk '{$3="00000"$3; len=(length($3)-5); $3=(substr($3,len)); print  }')
   printf "renaming $OLDFILENAME to $NEWFILENAME \n"
   mv "$OLDFILENAME" "$NEWFILENAME"
 fi
done