Linux Journal

Work the Shell - Parsing Command-Line Options with getopt

I've talked before about how I am a lazy shell script programmer. It might be because I'm simply not a full-time professional software developer, and I don't even administer my own servers anymore—I ...
Network World

Using the eval command in Linux to run variables as commands

The eval command allows you to run the contents of variables as commands and can be very useful, especially in scripts. There are probably a lot of Linux users who have never encountered the eval ...
Bleeping Computer

Understanding Command Line Arguments and How to Use Them

What are Command Line Arguments and why would you use them? Command line arguments are extra commands you can use when launching a program so that the program's functionality will change. Depending on ...
Linux Journal

Creating Linux Command-Line Tools in Clojure

Finding the version of Clojure you are using is as simple as executing one of the following commands inside the Clojure REPL, which you can enter by running clojure: # clojure Clojure 1.8.0 user=> ...