give read write permissions to a folder in linux to a user code example

Example 1: linux full permission to folder

# 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 give permission to a user in linux on a folder

sudo chmod u+w myfolder