Environmental variables, PATH. vi (vim)

Learning outcomes:

• Show the use of vi to create, edit and save a text file
• Explain how the environmental variable PATH is displayed and why it is important
• Describe two environmental variables other than PATH

Would you like to download my PowerPoint to follow along?

• VI
• Modal editor, which means you need to be in the correct mode to change the file, and a different one to save the file
• A Beginner's Guide to Editing Text Files With Vi
• Learn VI through VIM adventures
• VI Cheat Sheet
• Environmental Variables
• Used to keep track of things on system
• Global variables are all upper case
• PATH places to look for files
• HOME the home directory
• printenv displays environmental variables
• set can change values, DANGER HERE Linux will let you be stupid and not give warnings
• Guide to Linux Environment Variables
• How To Read and Set Environmental and Shell Variables on Linux

Suggested Activities and Discussion Topics:

• Activity: Watch my video on YouTube for VI and follow along with me

Would you like to see some more classes? Click here