To read a compressed file without having to first uncompress it, use
"zcat" or "zmore" to view it.
		-- Dru 

To see how much disk space is left on your partitions, use

	df -h
		-- Dru 

To see the 10 largest files on a directory or partition, use

	du /partition_or_directory_name | sort -rn | head
		-- Dru 

To determine whether a file is a text file, executable, or some other type
of file, use

	file filename
		-- Dru 

Time to change your password? Type "passwd" and follow the prompts.
		-- Dru 

Want to know how many words, lines, or bytes are contained in a file? Type
"wc filename".
		-- Dru 

Need to print a manpage? Use

	man name_of_manpage | col -bx | lpr
		-- Dru 

Need to remove all those ^M characters from a DOS file? Try

	col -bx < dosfile > newfile
		-- Dru 

Forget what directory you are in? Type "pwd".
		-- Dru 

If you are in the C shell and have just installed a new program, you won't
be able to run it unless you first type "rehash".
		-- Dru