#!/bin/bash
#$Id: play-sound-delay 7 2009-02-25 15:19:11Z j-waldby $

[ -z $1 ] && {
   yume -bu -ex\
     -la 60 "$0 60" \
     -la 180 "$0 180"\
     -la 240 "$0 240"\
     -do "$0 3" &
   exit; }

# After specified delay, beep or play pop.wav
# Parameter:  Delay in seconds

PLAY=`which play 2>/dev/null`
[ -x "$PLAY" ] || { sleep $1; echo -ne '\a'; } &
[ -x "$PLAY" ] && { sleep $1; $PLAY pop.wav > /dev/null 2>&1; } &

# This example makes a menu with a row of four buttons (labeled exit,
# 60, 180, and 240) and a do: item, containing the command
# "./play-sound-delay 3".  When it starts, play-sound-delay tests if
# it has no parameters; if that is so, it uses yume to create a menu,
# and exits.  If not, it uses the parameter as a length of time to
# sleep, in background, before playing a sound with "play pop.wav".
# play is a SoX (Sound eXchange) program, and file pop.wav appears in
# yume's examples directory.  If you don't have play on your system,
# the script will just use "echo -ne '\\a'" to beep.

# Techniques illustrated: Invoking a script one way to start yume, and
# another to execute complicated actions ($0 represents script name);
# command grouping with braces, { ... ; }; redirecting stdout and
# stderr outputs to /dev/null.

# Note that this script says "#!/bin/bash" in its first line, rather
# than "#!/bin/sh", to emphasize that some of the notation may be
# bash-specific.