Re: How do I install a program?
I imagine there should be instructions, either with that file or on its developer's website.
There might be a shell script included (filename might end in '.sh'), that you have to drag to the terminal window to run the program.
I try to treat the cause, not the symptom. I avoid the terminal in instructions, unless it's easier or necessary. My instructions will work within the Ubuntu system, instead of breaking or subverting it. Those are the three guarantees to the helpee.