For calculation media files summary duration in a specific directory, we need ffprobe and python
Install Network Time Service (ntp) & ntpdate clients:
For this purpose you can use find command line tool.
Name grep comes from “globally search for a regular expression and print matching lines“
Screen is a program which allows the user to run multiple preserved window session on a single machine. It’s commonly used for running long term procedures in the background by the detaching from the current running state without termination.