File Permission Type
READ Enables users to open files and read its
contents using;more, cat, grep, sort, view.
WRITE Enables users to open a file and change its
contents using:vi, word, >
EXECUTE Enables users to execute files as commands
Directory Permission Type
READ Users can view filenames in the directory
WRITE Users can create, delete files in the directory.
EXECUTE Users can search in the directory and change
to it using the cd command.