blog: Countdown timer

I couldn’t find a countdown timer for my training for reps, so I wrote a little bash script, that does the job (at least well enough…). You’ll need the text synthesizer espeak and a sound file named sound.mp3 for this.

#!/bin/bash

countdown=5

if [ "$#" -eq 1 ]; then
    delay=5
    time=$1
elif [ "$#" -eq 2 ]; then
    delay=$1
    time=$2
else
  echo "Usage: $0 [DELAY] TIME"
  exit -1
fi


function countdown {
    for i in `seq $1 -1 1`; do
	espeak $i &
	sleep 1
    done
}

sleep $(($delay-$countdown))

countdown $countdown
mplayer sound.mp3 &
sleep $(($time-$countdown))

countdown $countdown
mplayer sound.mp3