computercraft opening programs in code

shell.run("dj", "left") – or "right", "up", "down", etc.
shell.run receives the program name/path, and the arguments you want to pass to the program.

thank you so much

it dosnt work it comes up with

usages:
dj play
dj play (side)
dj stop

That's because you have to give it the right arguments:

shell.run("dj", "play", "left")

I never used the dj program and didn't check what was the arguments it needs, so I assumed that what you told was right (dj left,right,up and down).
shell.run() works like when you type in the terminal, so every word you would normally write must be a parameter for shell.run (wich is what happens when you type in the terminal).