How to end while loop with key pressed?

[janmartin]

Hi all,

I need to write an infinite loop that stops when any key is pressed.

Unfortunately this one loops only when a key is pressed.

Ideas please?

#!/bin/bash

count=0
while : ; do

# dummy action
echo -n "$a "
let "a+=1"

# detect any key press
read -n 1 keypress
echo $keypress

done
echo "Thanks for using this script."
exit 0

[Ralf Goertz]

janmartin wrote:

> Hi all,
>
> I need to write an infinite loop that stops when any key is pressed.
>
> Unfortunately this one loops only when a key is pressed.
>
> Ideas please?

> …
> read -n 1 keypress
> …

Try this one instead

read -t 0.5 -n 1 keypress && exit