Tmux
toolsTerminal multiplexer that allows multiple terminal sessions within a single window
Pronunciation
Correct
tee-mux
/tiː mʌks/
Stands for 'Terminal Multiplexer'. The 't' is said as the letter 'tee', followed by 'mux' (short for multiplexer). This is the standard pronunciation used in the Unix community.
Source: github.com(community consensus)