Linux file permissions

Now view information for a file

[Email protected]:/home/songl/test# ls-l A.18565 may  5:  A. Out      

-Rwx rwx R-x	1	Songl	Songl	8565 5 07:45	A.out
File Permissions and Types	Inode Connection Number	Owner	Owning user group	Time	Filename
Change Directive chmod		More the directive Chown	More the directive CHGRP

Generally, the identity of the Access file is:

1, the owner of the file (owner)

2. User groups (group)

3. Others (Others)

-	Rwx	Rwx	R-x
Represents a file	Owner Permissions	Owning user rights	Other user rights

　　

Ways to change file properties:

1,Chgrp [-r] Dir/file change the user group that the file belongs to, plus-R is updated with all files and directories under the subdirectory

2,Chown [-r] Dir/file change the owner of the file, plus-R is updated with all files and directories under the subdirectory

3,CHOMD [-r] ABC Dir/file change read and write execution rights for different users

[Email protected]:/home/songl/test# ls-l A. out-rwxrwxr-x1Songl Songl8565May5  -: $A. out[email protected]:/home/songl/test# chmod g-w A. out[email protected]:/home/songl/test# ls-l A. out-rwxr-xr-x1Songl Songl8565May5  -: $A. out[email protected]:/home/songl/test# Chown Root A. out[email protected]:/home/songl/test# ls-l A. out-rwxr-xr-x1Root Songl8565May5  -: $A. out[email protected]:/home/songl/test# Chgrp Root A. out[email protected]:/home/songl/test# ls-l A. out-rwxr-xr-x1Root root8565May5  -: $A. out

Linux file permissions