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You can use Bash to read individual keypresses. Here is an example:
Code:
#!/bin/bash
# Reset terminal to current state when we exit.
trap "stty $(stty -g)" EXIT
# Disable echo and special characters, set input timeout to 0.2 seconds.
stty -echo -icanon time 2 || exit $?
# String containing all keypresses.
KEYS=""
# Set field separator to BEL (should not occur in keypresses)
IFS=$'\a'
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