shell 批量文件改名
# cat mv.sh#!/bin/bash
for file in `ls *.jpg`
do
/bin/mv $file `echo "${file%finished*}.jpg"`
done
# ll
total 8
-rw-r--r-- 1 root root 106 Dec 26 05:33 a.log
-rw-r--r-- 1 root root90 Dec 26 05:39 mv.sh
-rw-r--r-- 1 root root 0 Dec 26 05:34 stu_102999_1_finished.jpg
-rw-r--r-- 1 root root 0 Dec 26 05:34 stu_102999_2_finished.jpg
-rw-r--r-- 1 root root 0 Dec 26 05:34 stu_102999_3_finished.jpg
-rw-r--r-- 1 root root 0 Dec 26 05:34 stu_102999_4_finished.jpg
# sh mv.sh
# ll
total 8
-rw-r--r-- 1 root root 106 Dec 26 05:33 a.log
-rw-r--r-- 1 root root90 Dec 26 05:39 mv.sh
-rw-r--r-- 1 root root 0 Dec 26 05:34 stu_102999_1_.jpg
-rw-r--r-- 1 root root 0 Dec 26 05:34 stu_102999_2_.jpg
-rw-r--r-- 1 root root 0 Dec 26 05:34 stu_102999_3_.jpg
-rw-r--r-- 1 root root 0 Dec 26 05:34 stu_102999_4_.jpg
思路：
# k="stu_102999_1_finished.jpg"
# echo ${k%finished*}.jpg
stu_102999_1_.jpg
2、用${string/%substring/replace} 修改扩展名
# ls
1.log1.shcamz.HTMLicpc.HTMLleco.HTMLwjb.HTMLzshu.HTML
将后缀为HTML改为TH
# vim 1.sh
#!/bin/bash
for f in `ls *.HTML`
do
mv $f `echo ${f/%HTML/TH}`
done
# sh -x 1.sh
++ ls camz.HTML icpc.HTML leco.HTML wjb.HTML zshu.HTML
+ for f in '`ls *.HTML`'
++ echo camz.TH
+ mv camz.HTML camz.TH
+ for f in '`ls *.HTML`'
++ echo icpc.TH
+ mv icpc.HTML icpc.TH
+ for f in '`ls *.HTML`'
++ echo leco.TH
+ mv leco.HTML leco.TH
+ for f in '`ls *.HTML`'
++ echo wjb.TH
+ mv wjb.HTML wjb.TH
+ for f in '`ls *.HTML`'
++ echo zshu.TH
+ mv zshu.HTML zshu.TH
# ls
1.log1.shcamz.THicpc.THleco.THwjb.THzshu.TH
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