This makes no sense.
Commands to use programs such as cracker and forensics?
Arent commands programs?
"ls" is a command but also is a program, so is "cd", "cp", "mv", and "top".

Are you talking about the programs listed under cracker and forensics here?
http://knoppix-std.org/tools.html

If so, just type in "man" before the command you want to know about.
such as
man john
or
man wipe

Or use google to search for stuff about the programs/commands you are interested in.