2.3 Getting Help in Unix

Most Unix systems have an online documentation system called the "man pages." These can be accessed using the man command. (Unix uses man as an abbreviation for "manual.") To get information about a particular subject, use the command:

man subject 

For example, to find out about the classes defined in the iostream package, you would type:

man iostream 

The command also has a keyword search mode:

man -k keyword

To determine the name of every man page with the word "output" in its title, use the command:

man -k output