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This article will explain in detail how bash modifies file names in batches. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

I. add a suffix

1. Question: there are a large number of date-named files in the same directory, some of which have suffixes and some end with dots, such as 20020101. , 20020101.tdbell 20020102.td.

Requirement: add a suffix to everything that ends with a dot. Ts

My method:

The code is as follows:

#! / bin/bash

For files in `ls * .`

Do

Mv $files `echo "$filests" `

Done

two。 Same as above

Mv $files ${files} ts

3. Same as above

Mv $files `$files.ts | sed's /\. / /'`

4. File = > file.txt

Mv $files $files.txt

5. * .04 = > * 04.txt

Mv $files $(echo ${files} .txt | sed's /\. / / 1')

Or

Mv $files `echo ${files} .txt | sed's /\. / / 1' `

Second, change the suffix (.old = > .new)

The code is as follows:

1. Rename

Rename .old .new *

two。

Mv $files ${file%.old} .new

3.

Mv $files `echo $files | tr .old .new`

4.

Mv $files `echo $files | sed's /\ .old /\ .new /'`

Remove the suffix (* .dat = > *)

The code is as follows:

1. Mv $files `echo $files | sed's /\ .dat / /'`

2. Mv $files `echo $files | tr .dat (4 spaces) `

4. Change the prefix (re* = > un*)

The code is as follows:

1. Mv $files un$ {$files#re}

2. Mv $files `echo $files | tr re un`

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