Next, I’ll use the expr command to further explore input and output while performing some basic calculations in the shell. This activity will build foundations in understanding how to communicate with ...

The echo command outputs a specified string of text (You should get the hello sent back to you) This time we are going to use echo hello again, but include quotation marks around the string data. Type ...

As Brien demonstrates, string validation is not the only type of input validation that PowerShell can perform.