Speaking UNIX, Part 1: Command the Power of the Command Line

Learn the basics of the UNIX shell and discover how you can use the command line to combine the finite set of UNIX utilities into innumerable data transforms.

Streicher, Martin. IBM (2006). Articles>Software>Operating Systems>UNIX

Speaking UNIX, Part 9: Regular Expressions

Virtually all non-trivial problems require you to filter good data from bad. Discover the many UNIX command line utilities that use regular expressions to discern the relevant from the irrelevant.

Streicher, Martin. IBM (2007). Articles>Editing>Regular Expressions>UNIX