The alias Command: one of the most complete articles about a popular command for customizing the shell.
The cat Command: commonly used for displaying, concatenating (i.e., combining) and creating files.
The du Command: about the best tool for showing the sizes of directories and files and for tracking down space hogs.
How to Create a First C Program on Linux: writing, compiling and running the classic Hello, World! program.
How to Install Knoppix on a Hard Drive: although Knoppix is designed to run directly from its CDROM, installation can further improve its performance.
Pipes: A Brief Introduction: how to harness one of the most powerful yet elegant features of Unix and Linux.
The pstree Command: about a way of showing the processes on the system as a tree diagram.
The spell Command: all about one of the simplest, and sometimes most convenient, of the free Unix spelling checkers.
vi Tutorial: a gentle introduction to the ubiquitous vi text editor for new users.
The wc Command: a Unix filter that counts lines, words, characters and bytes.
Created March 6, 2004. Updated July 30, 2004.