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Bash scripts and keyboard input

Posted 01-29-2012 at 02:43 PM by Nominal Animal

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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