File/Directory Permissions

To Change the Permissions using chmod

We can change the permissions of a directory using chmod command.

For Read Write Delete access to all.

chmod -R 777 path/*

For giving Read access alone to all.

chmod -R 444 path/*

For Read Write access to all.

chmod -R 666 path/

Other permissions are given below

Symbolic Notation	Octal Notation	Description
----------	000	no permissions
---x--x--x	111	execute
--w--w--w-	222	write
--wx-wx-wx	333	write & execute
-r--r--r--	444	read
-r-xr-xr-x	555	read & execute
-rw-rw-rw-	666	read & write
-rwxrwxrwx	777	read, write, & execute

Legend:

CODE	DESCRIPTION
0	No Permission
1	Execute
2	Write
3	write & execute
4	Read
5	Read & execute
6	Read and Write, no execute
7	Full Access

First one is Owner, Second is Group and third is others.

Common ones:

PERMISSION	COMMAND
rwxrwxrwx	chmod 777 filename
rwxrwxr-x	chmod 775 filename
rwxr-xr-x	chmod 755 filename
rw-rw-rw-	chmod 666 filename
rw-rw-r--	chmod 664 filename
rw-r--r--	chmod 644 filename