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This article mainly introduces "the usage of Linux basic commands expand and unexpand". In daily operation, I believe many people have doubts about the usage of Linux basic commands expand and unexpand. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts about "the usage of Linux basic commands expand and unexpand". Next, please follow the editor to study!

Expand

Convert the tab in the file to spaces and send the result to standard output. If no file is specified, it is read from standard input.

The scope of this command: RedHat, RHEL, Ubuntu, CentOS, SUSE, openSUSE, Fedora.

1. Grammar

Expand [options] file

2. List of options

Option

Description

-- version

Display command version information

-- help

Show help documentation

-I |-- initial

Tab that does not convert blank lines

-t |-- tabs

Specifies the number of characters represented by tab. Default is 8.

3. Examples

Replace tab

[root@192 weijie] # cat 2.c / / View content

Hello linux

I am weijie

Love world

Hehe

Im join

[root@192 weijie] # expand-t 1 2.c / / replace tab with a space

Hello linux

I am weijie

Love world

Hehe

Im join

Unexpand

Converts the white space character in the file to the control character tab and sends the result to standard output. The number of spaces greater than 8 can be replaced. If no file is specified, it is read from standard input.

The scope of this command: RedHat, RHEL, Ubuntu, CentOS, SUSE, openSUSE, Fedora.

1. Grammar

Unexpand [options] file

2. List of options

Option

Description

-- version

Display command version information

-- help

Show help documentation

-a

Convert all spaces

-- first-only

Convert only the first spaces

-t |-- tabs

Specifies the number of characters represented by tab. The default is 8.

3. Examples

Replace whitespace

[root@192 weijie] # cat 3.c / / View the content with 16 spaces

Nihao linux

[root@192 weijie] # unexpand-a-t 163.c / / replace 16 spaces and become tab

Nihao linux

At this point, the study of "the usage of Linux basic commands expand and unexpand" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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