Shell practice: Using the For loop to bulk modify file name extensions

Shell practice: Using the For loop to bulk modify file name extensions

Description: (1) Under Linux batch modify the file name, the command shown in the "_linux" removed.

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(2) Use the For loop script.

Ideas: The basic problem-solving ideas, first to make a single file name, and then use the cycle to achieve batch renaming, which is more conventional practice, you can also use Rename Professional renaming tool.

2. Method One:

   Description: Use the Cut, sed tool

   The script is as follows:

   #!/bin/bash

   Cd/test

   For i in ' Ls|grep. *.jpg '

   Do

   MV $i ' echo $i |cut-d '. '-f1|sed ' s#_linux## '. jpg

   Done

   Script execution, as shown in:

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4. Note: In order to perform the following experiments, we need to perform data recovery for the above files using the cut and awk tools.

   The script is as follows:

   #!/bin/bash

   #date: 2017-7-26

   Cd/test

   For i in ' Ls|grep. *.jpg '

   Do

   MV $i ' echo $i |cut-d '. '-f1|awk-f ' _ ' {print $ "_" $ "_" $ $} "_linux.jpg

   Done

   Script execution, as shown in:
   

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6. We then use the second method to bulk modify the file name.

   Method Two: Use the cut, awk tool

   The script is as follows:

   #!/bin/bash

   #date: 2017-7-26

   Cd/test

   For i in ' Ls|grep. *.jpg '

   Do

   MV $i ' echo $i |cut-d '. '-f1|awk-f ' _ ' {print $ ' _ ' $ $ ' _ ' $ $} '. jpg

   Done

   
   

   Script execution, as shown in:

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8. Method Three: Use Cut, sed tools

   The script is as follows:

   #!/bin/bash
   

   Cd/test

   For i in ' Ls|grep. *.jpg '

   Do

   MV $i ' echo $i |cut-d '. '-f1|sed-r ' s# (. *) _linux#\1# '. jpg

   Done

10. Method four: Using the SED tool

    The script is as follows:

    #!/bin/bash

    Cd/test

    For i in ' Ls|grep. *.jpg '

    Do

    MV $i ' echo $i |sed ' s#_linux## '

    Done

12. Method Five: Use the Rename tool

    #!/bin/bash

    Cd/test

    For i in ' Ls|grep. *.jpg '

    Do

    echo $i |rename "_linux" "" "*.jpg

    Done

This article is from the "Hand of the Paladin Control" blog, please make sure to keep this source http://wutengfei.blog.51cto.com/10942117/1951146

Shell practice: Using the For loop to bulk modify file name extensions