If your automated script takes action based on a value, it's critical to make sure the value is correct. Good thing PowerShell has ways to validate the values that are passed to a function. In recent ...

When you first start writing scripts, modularity, reusability, and best practices may not be top of mind. As your scripts become more complex, however, creating reusable elements becomes essential. By ...

In the last lesson we started learning how to forge our own PowerShell tools. I started with a simple need, calculate the median and range for a set of numbers. Now that we know how to do it from the ...

If you've been building PowerShell scripts for a while now you've surely came across instances where you need to reuse a particular snippet of code. Rather than copying and pasting that snippet of ...

Last month, I explored exit codes and how decent error correction in your shell scripts always should include testing the value of $? after each meaningful command ...

That sequence of strange symbols on the Bash command line must mean something, right? We're breaking down special characters ...

Scripts are part of the foundation for efficient network administration. Network administrators are generally not programmers, but they need tools that will let them automate certain tasks and ...

In Part 1 of this series, I showed you an example of PowerShell's native validation capabilities. In that installment, I wrote a function that accepted a text string as input. The function then used ...