24.4.5. Using the du Command
				The 
du command allows you to displays the amount of space that is being used by files in a directory. To display the disk usage for each of the subdirectories in the current working directory, run the command with no additional command-line options:
			du
du
				For example:
			
				By default, the 
du command displays the disk usage in kilobytes. To view the information in megabytes and gigabytes, supply the -h command-line option, which causes the utility to display the values in a human-readable format:
			du -h
du -h
				For instance:
			
				At the end of the list, the 
du command always shows the grand total for the current directory. To display only this information, supply the -s command-line option:
			du -sh
du -sh
				For example:
			
du -sh
~]$ du -sh
15M     .
				For a complete list of available command-line options, see the du(1) manual page.