100 pushup challange shell script

pushup.sh

###
# 100 pushup challange shell script
# 
# Dependencies:
# - alsa
# - alsa-tools
# - espeak
#
###


set -e

_alarm() {
  ( \speaker-test --frequency $1 --test sine )&
  pid=$!
  \sleep 0.${2}s
  \kill -9 $pid
}

_usage() {
    echo "Go to http://www.hundredpushups.com/"
    echo
    echo "Find a week, then enter sets for a specific day."
    echo
    echo "For example:"
    echo "sh pushup.sh 10 12 7 7 9"
}

if [ $# -ne 5 ]; then
    _usage
    exit 1
fi

espeak "Welcome to the 100 pushup challenge"

espeak -s 120 "Sets: ${1}, ${2}, ${3}, ${4}, at least ${5}."

espeak "Get ready"

sleep 2

espeak -s 120 "Set one: ${1}"
_alarm 400 9; _alarm 500 9; _alarm 600 9

sleep 70

espeak -s 120 "Set two: ${2}"
_alarm 600 9

sleep 80


espeak -s 120 "Set three: ${3}"
_alarm 600 9

sleep 90

espeak -s 120 "Set four: ${4}"
_alarm 600 9

sleep 90

espeak -s 120 "Set five: at least ${5}"
_alarm 600 9