Developing a Linux Command-Line Utility
I liked this article because it shows you how to write Linux command-line utilities that are foolproof enough even for end users. It covers solid command-line best practices and also includes a comprehensive tour of a working page-selection tool. This article gives you good background to start writing your own utilities. It is modeled on de facto conventions for creating commands in Linux, including: working standalone, working as a component in a pipeline of commands (by reading either standard input or a filename argument, and writing to standard output and standard error), and taking command line options that modify its behavior.
(Submitted by Debinay Tue Jul 16, 2002 )
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