The following shows a Linux command line with a
# echo -e 'AAAAHHH!!!\a' > /dev/null #
It represents a famous line from a work of fiction. What line is that?
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The answer is
"In space no one can hear you scream." The tagline for the Alien movie.
echo -e 'AAAAHHH!!!\a'
This is a scream. (Added bonus of \a telling the system to beep.)
This redirects the output to the null device, effectively muting it.
In space, no one can hear you scream
The scream gets written to /dev/null, which discards all data written to it. In other words no one receives the text, it gets lost 'in the void'.
Not sure what the beep represents though.