suspend_until

#!/bin/bash

# Auto suspend and wake-up script
#
# Puts the computer to sleep and automatically wakes it up at specified time
#
# Written by Romke van der Meulen <romke.vd.meulen@gmail.com>
#
# Takes a 24-hour time HH:MM as its argument
# Example:
# suspend_until 9:30
# suspend_until 18:45

# ------------------------------------------------------
# Argument check
if [ $# -lt 1 ]; then
	echo "Usage: suspend_until HH:MM"
fi

# Check whether specified time today or tomorrow
DESIRED=$((`date +%s -d "$1"`+7200))
NOW=$((`date +%s`))
if [ $DESIRED -lt $NOW ]; then
	DESIRED=$((DESIRED + 24*60*60))
fi

# Kill rtcwake if already running
sudo killall rtcwake

# Set RTC wakeup time
sudo rtcwake -t $DESIRED -m on &


# feedback
echo "Suspending..."

# give some time to cancel if needed
sleep 2

# then suspend
sudo pm-suspend

# Wake up with monitor off
xset dpms force off

# Kill rtcwake if still running
sudo killall rtcwake

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