how to add user permission to filein linux code example

Example 1: linux give full permission to directory

# Change permissions for the root file/dir only
chmod 777 path/to/directory/
# Or
chmod 777 path/to/file
# Change permission for root dir and all files/dirs within
chmod -R 777 path/to/directory/

Example 2: 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.