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This article introduces the "shell backup files, rename files, delete specified files scripting tutorial" related knowledge, in the actual case of the operation process, many people will encounter such a dilemma, and then let the editor lead you to learn how to deal with these situations! I hope you can read it carefully and be able to achieve something!

1. Back up the files under the directory

The code is as follows:

#! / bin/bash

E_BADARGS=65

Case $# in / / $# indicates the number of parameters transferred. Sh bak.sh. / .sh has two parameters. / and .sh

0) / / if the parameter is empty, an error is prompted and exit

Echo "message:param is wrong"

Exit $E_BADARGS

Esac

String= ""

Cd $1 / / enter the incoming directory

/ / parameters should also be connected to the files in the backup subdirectory

If [$#-gt "1"]

Then

String=$string "" $2

Fi

For filename in * / / read the files in the current directory

Do

If [- d "$filename"] / / check whether it is a directory or not

Then

/ bin/sh / home/zhangy/test/$0 $(pwd) / $filename $string / / Recursive if it is a directory

Else

If [$#-gt "1"] & & [${filename: (- ${# 2})} = $2] / / specify what files to back up

Then

Cp $filename $filename "bak"

Fi

If [$#-eq "1"]

Then

Cp $filename $filename "bak" / / unspecified, back up all files in the directory

Fi

Fi

Done

Exit 0

[zhangy@BlackGhost test] $sh bak.sh. / .sh means to back up all files in the current directory (and subdirectories) with the suffix .sh.

2, rename the file

The code is as follows:

#! / bin/bash

E_BADARGS=65

Case $# in

0 | 1 | 2)

Echo "message:param is wrong"

Exit $E_BADARGS

Esac

String= ""

Cd $1

If [$#-gt "2"]

Then

String=$string "$2" $3

Fi

For filename in *

Do

If [- d "$filename"]

Then

/ bin/sh / home/zhangy/test/$0 $(pwd) / $filename $string

Else

If [$#-gt "2"] & [${filename: (- ${# 2})} = $2]

Then

Mv $filename ${filename%$2} $3

Fi

Fi

Done

Exit 0

[zhangy@BlackGhost test] $sh rename.sh / home/zhangy/test .php .html means that all files in the current directory (including subdirectories) with the suffix .php are renamed to .html

3. Delete the specified file

The code is as follows:

#! / bin/bash

E_BADARGS=65

Case $# in

0 | 1)

Echo "message:param is wrong"

Exit $E_BADARGS

Esac

String= ""

Cd $1

If [$#-gt "1"]

Then

String=$string "" $2

Fi

For filename in *

Do

If [- d "$filename"]

Then

/ bin/sh / home/zhangy/test/$0 $(pwd) / $filename $string

Else

If [$#-gt "1"] & & [${filename: (- ${# 2})} = $2]

Then

Rm-f $filename

Fi

Fi

Done

Exit 0

[zhangy@BlackGhost test] $sh del.sh / home/zhangy/test .log delete / home/zhangy/test, and all files in the subdirectory with the suffix .log

This is the end of the scripting tutorial for shell backing up files, renaming files, and deleting specified files. Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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