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tmux is a terminal multiplexer: it enables a number of terminals to be created, accessed, and controlled from a single screen. tmux may be detached from a screen and continue running in the background, then later reattached.

pidof - find the process ID (PID) of a running program [using its name].

cd - C hange the current d irectory

clear - c L ear the terminal screen

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GitHub CLI brings GitHub to your terminal. Free and open source. Official website: https://cli.github.com

tr - translate or delete characters

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wc - print newline, word, and byte counts for each file

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