There are several folders under my server
You can also use Ls-l to view the permissions for these several files.
Look at the assets file, which has a total of 10 digits, of which:
The front one-represents the type
The middle three rwx represent the permissions owned by the owner (user)
Then the three rwx represent the permissions that the group has
The last three rwx represent the rights that other people (other) have.
R indicates that the file can be read (read)
W indicates that the file can be written (write)
x indicates that the file can be executed (if it is a program)
-Indicates that the corresponding permission has not been granted next is the file Modification command, here I use the chmod this command.
In the terminal input:
chmod o W xxx.xxx
To give other people permission to write xxx.xxx this file
chmod GO-RW xxx.xxx
Indicates deletion of Read and write permissions for groups and other people in xxx.xxx
which:
U on behalf of owner (user)
G represents the group in which the owner is located
O on behalf of others, but not u and g (Other)
A represents all the people, including U,g and O.
R indicates that the file can be read (read)
W indicates that the file can be written (write)
x indicates that the file can be executed (if it is a program)
Where: rwx can also use numbers to replace
R ———— 4
W ——— –2
X ———— 1
-———— 0
Action:
"" means adding permissions
-Indicates delete permission
= means to make it a unique permission
When everyone is aware of the above, then some of our common permissions are easy to understand:
-RW ——-(600) Only the owner has read and write permission
-rw-r–r– (644) Only the owner has read and write permission, the group and others only Read permission
-rwx--(700) Only the owner has the right to read, write, execute
-rwxr-xr-x (755) Only the owner has the right to read, write, execute, group and others only read and execute
-rwx–x–x (711) Only the owner has permission to read, write, execute, group and others only execute
-rw-rw-rw-(666) Everyone has access to read and write
-RWXRWXRWX (777) Everyone has access to read and write and execute