change permissions of directory code example

Example 1: debian give write permission

sudo chmod -R 757 /var/www

Example 2: change the permissions of a folder in linux

sudo chmod -R 757 <file>

Example 3: how to change permissions on a file in linux

sudo chmod -R ugo+rwx /file/path

Example 4: linux chmod permissions

The three rightmost digits define permissions for the:
file user, the group, and others. 

#	Permission				rwx	Binary
7	read, write and execute	rwx	111
6	read and write			rw-	110
5	read and execute		r-x	101
4	read only				r--	100
3	write and execute		-wx	011
2	write only				-w-	010
1	execute only			--x	001
0	none					---	000

Example 5: find change permissions to subdirectories

sudo find /var/www/html -type d -exec chmod 755 {} \;