I need to come up with a regular expression to find only the letters A, F or E in the 9th digit of a given text. I am new to regex and did some searching, but I can’t find it To any similar reply.
Category: OS
Operating System (Operating System, referred to as OS) is a computer program that manages and controls computer hardware and software resources. It is the most basic system software that runs directly on the “bare metal”. Any other software must be supported by the operating system to run .
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