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This article is about what linux file management commands are about. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

What is Linux system Linux is a free-to-use and free-spread UNIX-like operating system, is a POSIX-based multi-user, multi-task, multi-threaded and multi-CPU operating system, using Linux can run major Unix tools, applications and network protocols.

The details are as follows:

1. Display the contents of the file

Cat: displaying file contents

Tac: displaying content in reverse order

2. Change file permissions

Chmod: changing file permissions

-R recursive change

Chown: change the file owner

-R recursive change

Chgrp: change the group to which the file belongs

-R recursive change

> chmod 666 1.txt > chown user1 1.txt > chgrp user1 1.txt

3. Link the file

1) protect the source program

2) easy to access

Ln [options] Source file or directory destination file or directory

-s soft link

Changing one file will affect another.

Deleting a source file affects the use of linked files

-d hard link

Hard-linked files look the same as ordinary files

Changing one file will affect another.

Hard-linked files will not be affected after the source file is deleted

4. Find files

Find [directory list] [matching parameters] [matching criteria]

-name queries by file name

-group queries by the group to which the file belongs

-user queries by user name

> find / home/user1-name 1.txt

5. Other related commands

Df check hard disk space

-l view the local hard drive

-h is displayed in 1024

-H is displayed in 1000

-T displays the partition type

-t displays the specified partition type

-x does not display the specified partition type

> df-lh > df-lH

Du View File Siz

-b in bytes

-k in kilobytes

-m in megabytes

-h is displayed in 1024

-H is displayed in 1000

-s display statistics

Du-s 123 Statistics folder size

Mount mount command

Mount / dev/cdrom / mnt/cdrom

Umount uninstall command

Umount / mnt/cdrom

Eject eject CD-ROM drive

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