how to set read permissions to all user in file in linux 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: change permissions for specific file types linux

find . -name "*.sh" -exec chmod +x {} \;