Need help launching one specific wad for z Doom without having to select from a list

[jamieasy]

What is the custom line parameters to run z Doom and a specific wad?, when I start z Doom it gives me a whole list of multiple wads to use... if the wrong one is selected from the game I imported then everything gets jumbled and the screen colors are messed up, should I even be doing this through the command line? should I import the game as batch files and if I do.... what is the correct code to open z Doom then run a specific wad? If anyone can help me I would really appreciate it thank you

[jamieasy]

Never mind I figured it out, I guess I wasn't catching that -file was actually iwad, good thing I took programming