Modify a file post-stamp that starts with a letter under Linux

1. How to modify the post-stamp of a file starting with a letter under Linux

Source file Contents

[Email protected] test]# lsstu10.txt.php stu3.txt.php stu6.txt.php stu9.txt.php test3.txtstu1.txt.php stu4.txt.php stu7.txt.php test1.txt test4.txtstu2.txt.php stu5.txt.php stu8.txt.php test2.txt test5.txt

Now we'll modify the post-stamp of all files starting with S to. html

First step: Find the file that starts with S

[Email protected] test]# find-type f-name "s*"./stu8.txt.php./stu7.txt.php./stu6.txt.php./stu9.txt.php./ stu3.txt.php./stu4.txt.php./stu2.txt.php./stu5.txt.php./stu1.txt.php./stu10.txt.php

Step two: Take the first half of the file

[[email protected] test]# find-type f-name "s*" |awk-f "[./]+" ' {print $} ' Stu8stu7stu6stu9stu3stu4stu2stu5stu1stu10

Step three: Use the Stitching method to implement file post-stamp modification

[[email protected] test]# find-type f-name "s*" |awk-f "[./]+" ' {print "MV" $ ". Txt.php" $ ". html"} ' MV stu8.txt.php stu8. HTMLMV stu7.txt.php stu7.htmlmv stu6.txt.php stu6.htmlmv stu9.txt.php stu9.htmlmv stu3.txt.php stu3.htmlmv stu4.txt.php STU4.HTMLMV stu2.txt.php stu2.htmlmv stu5.txt.php stu5.htmlmv stu1.txt.php stu1.htmlmv stu10.txt.php stu10.html

Fourth step: Send the contents of the stitching to bash for processing

[Email protected]ost test]# find-type f-name "s*" |awk-f "[./]+" ' {print "MV" $ ". Txt.php" $ ". html"} ' |bash

Fifth step: View the Modified content

[[Email protected] test]# lltotal 0-rw-r--r--.  1 root root 0 jul  22 11:47 stu10.html-rw-r--r--.  1 root root 0 jul 22 11:47  stu1.html-rw-r--r--.  1 root root 0 Jul 22 11:47  Stu2.html-rw-r--r--.  1 root root 0 jul 22 11:47 stu3.html-rw-r--r--.  1 root root 0 jul 22 11:47 stu4.html-rw-r--r--.  1 root  root 0 jul 22 11:47 stu5.html-rw-r--r--.  1 root root 0  jul 22 11:47 stu6.html-rw-r--r--.  1 root root 0 jul 22  11:47 stu7.html-rw-r--r--.  1 root root 0 Jul 22 11:47  Stu8.html-rw-r--r--.  1 root root 0 jul 22 11:47 stu9.html-rw-r--r--.  1 root root 0 jul 22&nBsp;11:41 test1.txt-rw-r--r--.  1 root root 0 Jul 22 11:41  Test2.txt-rw-r--r--.  1 root root 0 jul 22 11:41 test3.txt-rw-r--r--.  1 root root 0 jul 22 11:41 test4.txt-rw-r--r--.  1 root  root 0 jul 22 11:41 test5.txt

You can see that all filenames that begin with s have been modified to. html

2, the above method of modifying file post-stamp can also use script to implement

The script content is as follows

#!/bin/bashworkdir=/server/file/test defines a directory as a variable if [-D $workDir];then to determine if the directory exists, exists then enters, does not exist and then launches the CD $workDire LSE Exit 1FIFOR I in $ (find-type f-name "[s]*") use for loop to find files starting with S do char= ' echo $i |awk-f ' [/.] + "' {print $} ' defines the first half of the file to be modified MV $i ${char}.html to modify the file to the desired content done

This article is from the "one small step per day" blog, so be sure to keep this source http://fenyuer.blog.51cto.com/11265169/1950044

Modify file post-stamp with a letter starting with Linux