The eval command allows you to run the contents of variables as commands and can be very useful -- especially in scripts.

Command line wizardry, part two: Variables and loops in Bash Learn to process thousands of items reliably and repeatably in this installment.

You're taking a new programming class this fall, and you don't know anything about code. Python is taught widely in schools, and it's one of the most loved programming languages because it's simple.

Structures (or “structs” in C) allow you to group several related variables and treat them as one unit. They are a mechanism for extending the type system of the C language by introducing user-defined ...

I'm working on some scripts that execute on various servers, and I'm trying to consolidate them into one. The problem is that I need to run remote commands but can't pass variables. Here's a very ...