suspend_for

#!/bin/sh

# Auto suspend and wake-up script
# 
# Puts the computer to sleep and automatically wakes it up after specified period
# 
# Courtesy of http://ubuntuforums.org/member.php?u=130449
# from thread http://ubuntuforums.org/showthread.php?t=938533&page=2
# Edited by Romke van der Meulen <romke.vd.meulen@gmail.com>

# Example:
# suspend_for 1
# suspend_for 1 hour
# suspend_for 2 hours
# suspend_for 1 minute
# suspend_for 60 minutes

# ------------------------------------------------------
# Argument check
MINARGS=1
MAXARGS=4
E_BADARGS=65

if [ $# -lt "$MINARGS" ] || [ $# -gt "$MAXARGS" ]; then
  echo "Usage: `basename $0` [[number] hours/h] [[number] minutes/m]"
  echo "E.G.: `basename $0` 2 hours"
  echo "E.G.: `basename $0` 30 minutes"
  echo "E.G.: `basename $0` 2 hours 30 minutes"
  echo "E.G.: `basename $0` 2 h 30 m"
  exit $E_BADARGS
fi
# ------------------------------------------------------

# Get root
sudo killall rtcwake

# Determine sleep interval
hours=0
minutes=0
multiply=0
total=0

# Check for first argument set, default hours
multiply=3600
if [ $# -gt 1 ]; then
	if [ "$2" = "minutes" ] || [ "$2" = "minute" ] || [ "$2" = "m" ]; then
		multiply=60
		minutes=$1
	else
		multiply=3600	
		hours=$1
	fi
fi

# Add time from first argument set
total=`expr $1 \* $multiply`

echo "(first arg set $total seconds)"

# Check for second argument set, default minutes
multiply=0
if [ $# -gt 2 ]; then
	if [ "$4" = "hours" ] || [ "$4" = "hour" ] || [ "$4" = "h" ]; then
		multiply=3600
		hours=`expr $3 + $hours`
	else
		multiply=60	
		minutes=`expr $3 + $minutes`
	fi

	# Add time from second argument set
	total=`echo "$total + ($3 * $multiply)" | bc`
fi

# Let user know what we're going to do
echo "Going to suspend for $hours hours $minutes minutes ($total seconds)"
echo "To cancel, press Ctrl+c within the next 5 seconds."
sleep 5

# Fix error
total=$(($total+7200))

# Set wake up time,
sudo rtcwake -s $total -m on &

# give rtcwake some time to make its stuff
sleep 2

# then suspend
sudo pm-suspend

# Wake up with monitor off
xset dpms force off

# Any commands you want to launch after resume
# can be placed here
# Remember: sudo may have expired by now
clear
echo "Good morning!"