Time condition loop in shell

Question

I have just started learning shell script recently, so I don\'t know much about it.

I am trying to find example of time based while loop but not having any luck.

Answer 1

For a more modern approach...

Bash

declare -ir MAX_SECONDS=5
declare -ir TIMEOUT=$SECONDS+$MAX_SECONDS

while (( $SECONDS < $TIMEOUT )); do
    # foo
done

Korn

typeset -ir MAX_SECONDS=5
typeset -ir TIMEOUT=$SECONDS+$MAX_SECONDS

while (( $SECONDS < $TIMEOUT )); do
    # bar
done