chmod
	Change file mode permissions
SYNOPSIS
	chmod {[OPTIONS]} [PERMISSIONS] [FILE/DIR]
USAGES
	[PERMISSIONS]:
		4: Read
		2: Write
		1: Execute
		all add up to 
		[n][n][n]:
		(owner)(group)(world)
	[FILE/DIR]:
		Filename or directory name
	{[OPTIONS]}:
		-R, -recursive
EXAMPLE
	chmod -R 751 ./my-folder/
		Change permissions of everything in and 
		including './my-folder/' to:
			user: r/w/x
			group: r/x
			world: x
