Follow a command into a running process - Programming

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Follow a command into a running process

A close-up terminal prompt showing the typed command `python hello.py Sam` with the Enter key being pressed, plus a small arrow from the whole command to a label “request to start a program,” not “open file.”

A command is a request to run

Suppose you type python hello.py Sam and press Enter. You did not “open” hello.py; you asked the computer to start a program and hand it some text to work with.