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$ It moves to the end of the current line. grep Global Regular Expression Print, used to search for a string of characters. ~$ pip list | grep tensorflow >>> tensorflow 2.7.0 tensorflow-estimator 2.7.0 ... python -c Execute the Python code in command. $ python -c "import tensorflow as tf;print(tf.__version__)" >>> 2.8.0

UI : User Interface, it informs the user to the status of the system. It exists between the system and the user, it conveys input devices such as what people thinking about, output devices such as result of computation. API : Application Programming Interface. It functionates such as function or method of python. A web browser is created using the API provided by the operating system such as ale..