线上图片批量更换脚本记录

需求说明：
线上之前使用的图片没有经过处理，比较大。应产品同事要求，将图片拿出来处理后再替换之前的图片，图片名不变。

/tmp/image目录下存放的修改后的图片
[root@fangfull_web1 ~]# ls -l /tmp/image|head -10

total 66376
-rw-r--r-- 1 root root  114118 Jan 18 17:26 201407281934401406547280.jpg
-rw-r--r-- 1 root root  110450 Jan 18 17:26 201407281934511406547291.jpg
-rw-r--r-- 1 root root  156443 Jan 18 17:26 201407281937341406547454.jpg
-rw-r--r-- 1 root root   89006 Jan 18 17:26 201407281938241406547504.jpg
-rw-r--r-- 1 root root  136594 Jan 18 17:26 201407281938341406547514.jpg
-rw-r--r-- 1 root root   74327 Jan 18 17:26 201407281938551406547535.jpg
-rw-r--r-- 1 root root  114118 Jan 18 17:26 201407281940071406547607.jpg
-rw-r--r-- 1 root root  110450 Jan 18 17:26 201407281940161406547616.jpg
-rw-r--r-- 1 root root  105628 Jan 18 17:26 201407281940241406547624.jpg

线上图片存放的路径是/var/www/vhosts/www.fangfull.com/main/upload/，修改后的图片都有存放到这里
比如：注意find命令中的目标目录后面一定要加上/（比如下面的.../upload/，不能写成.../upload，否则查找不到）

[root@fangfull_web1 ~]#  find /var/www/vhosts/www.fangfull.com/main/upload/ -name 201407281934401406547280.jpg
/var/www/vhosts/www.fangfull.com/main/upload/20140728/201407281934401406547280.jpg
[root@fangfull_web1 ~]#  find /var/www/vhosts/www.fangfull.com/main/upload -name 201407281934401406547280.jpg
[root@fangfull_web1 ~]#

那么修改后的图片批量替换之前的图片的脚本如下：

#!/bin/bash
for m in `ls -l /tmp/image|awk -F" " '{print $9}'`
do
for i in `cat /tmp/b.txt`
do
for n in `ls "$i"|awk -F"/" '{print $9}'`
do
if [ $m == $n ];then
\cp -f /tmp/image/$m  `cat /tmp/b.txt|grep "$m"`
else
echo "123" > /dev/null 2>&1
fi
done
done
done

脚本解刨如下：

[root@fangfull_web1 ~]# ls -l /tmp/image|awk -F" " '{print $9}'|head -10

201407281934401406547280.jpg
201407281934511406547291.jpg
201407281937341406547454.jpg
201407281938241406547504.jpg
201407281938341406547514.jpg
201407281938551406547535.jpg
201407281940071406547607.jpg
201407281940161406547616.jpg
201407281940241406547624.jpg

[root@fangfull_web1 ~]# for i in $(ls -l /tmp/image|awk -F" " '{print $9}');do echo `find /var/www/vhosts/www.fangfull.com/main/upload/ -name "$i"` >> /tmp/b.txt;done
[root@fangfull_web1 ~]# cat /tmp/b.txt |head -10

/var/www/vhosts/www.fangfull.com/main/upload/20140728/201407281934401406547280.jpg
/var/www/vhosts/www.fangfull.com/main/upload/20140728/201407281934511406547291.jpg
/var/www/vhosts/www.fangfull.com/main/upload/20140728/201407281937341406547454.jpg
/var/www/vhosts/www.fangfull.com/main/upload/20140728/201407281938241406547504.jpg
/var/www/vhosts/www.fangfull.com/main/upload/20140728/201407281938341406547514.jpg
/var/www/vhosts/www.fangfull.com/main/upload/20140728/201407281938551406547535.jpg
/var/www/vhosts/www.fangfull.com/main/upload/20140728/201407281940071406547607.jpg
/var/www/vhosts/www.fangfull.com/main/upload/20140728/201407281940161406547616.jpg
/var/www/vhosts/www.fangfull.com/main/upload/20140728/201407281940241406547624.jpg
/var/www/vhosts/www.fangfull.com/main/upload/20140813/201408131047131407898033.jpg

[root@fangfull_web1 ~]# ls /var/www/vhosts/www.fangfull.com/main/upload/20140728/201407281934401406547280.jpg |awk -F"/" '{print $9}'

201407281934401406547280.jpg

[root@fangfull_web1 ~]# cat /tmp/b.txt |grep 201407281934401406547280.jpg

/var/www/vhosts/www.fangfull.com/main/upload/20140728/201407281934401406547280.jpg