Using the Command Line

The first command to learn is the cd command, which will be used to get to the directory where you keep your Ruby files. The command below will change directory to the \scripts directory. Note that on Windows systems, the backslash character is used to delimit directories but on Linux and OS X, the forward slash character is used.

C:\ruby>cd \scripts

• Starting a Command Prompt
• Entering Commands
• Navigate to the Ruby Directory
• Save a Test Script
• Run the Test Script
• Use Pipe Characters to Redirect Output
• Use Pipe Characters to Redirect Input
• Funnel Output and Input Between Scripts
• Start the Interactive Ruby Prompt
• Test the Interactive Ruby Prompt