chmod everything in directory 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 make all directory 775

find /opt/lampp/htdocs -type d -exec chmod 755 {} \;
find /opt/lampp/htdocs -type f -exec chmod 644 {} \;