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This article mainly explains "how to use the chmod method under linux". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how to use the chmod method under linux.

Method 1: use numbers to change the permissions server of a file or path

The permission scores are as follows:

R:4

W:2

X:1

Identities include:

User:u 、 group:g 、 other:o

For example, the permissions of the file represented by-rwxrwx--- are:

User:4+2+1=7

Group:4+2+1=7

Other:0+0+0=0

Note: if this is the case, the first letter of drwxrwx---, is d, indicating the path, and the permissions are the same as above.

Change file permissions to-rwxr-xr-x

Chmod 755 file

Note: if it is a directory, the code is: chmod 755 dir; directory all 755, then: chmod 755-R dir

Method 2: use symbol types to change file permissions

User:u + (join) r

Group:g-(remove) w files or directories

Other:o = (setup) x

All:a

Chmod aquix file adds execution permissions to u, g, and o

Chmod Umurw file removes writeable permissions from u

You can also use it this way: chmod uprirwx file is equivalent to chmod 755 file

At this point, I believe you have a deeper understanding of "how to use the chmod method under linux". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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