linux how to set permissions on 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 give permission to a user in linux on a folder

sudo chmod u+w myfolder

Example 4: how to set execute permission in linux

chmod -x script-name-here.sh #Change the "script-name-here" to the name of your .sh file.