Example 1. Specifying to acpid which script to run when the lid is closed

# /etc/acpi/events/lidbtn
# This is called when the user closes the lid and calls
# /etc/acpi/lidbtn.sh for further processing.

# Optionally you can specify the placeholder %e. It will pass
# through the whole kernel event message to the program you've
# specified.

# We need to react on "button lid.*" and "button/lid.*" because
# of kernel changes.

event=button[ /]lid
action=/etc/acpi/lidbtn.sh "%e"

Example 2. /etc/acpi/lidbtn.sh

#!/bin/sh
# /etc/acpi/lidbtn.sh
# Initiates a suspend-to-ram when the lid has been closed

# Initial settings
exec > /dev/null 2>&1
umask 0077
PATH="/sbin:/bin:/usr/sbin:/usr/bin"

# Suspend
echo "Going to sleep at `date`"
echo "* chvt 1"
/usr/bin/chvt 1
echo "* save vbestate"
/usr/sbin/vbetool vbestate save > /etc/acpi/vbestate
echo "* writing to /sys"
echo -n "mem" > /sys/power/state
echo ""

# Resume
echo "Back from sleep at `date`"
echo "* restore vbestate"
/bin/cat /etc/acpi/vbestate | /usr/sbin/vbetool vbestate restore
echo "* restore clock"
/sbin/hwclock --hctosys
echo "* chvt 7"
/usr/bin/chvt 7
echo "* done"
echo ""

# Done
exit 0

Example 3. Specifying to acpid which script to run when the sleep (Fn + F4) button is pressed

# /etc/acpi/events/powerbtn
# This is called when the user presses the power button and calls
# /etc/acpi/powerbtn.sh for further processing.

# Optionally you can specify the placeholder %e. It will pass
# through the whole kernel event message to the program you've
# specified.

# We need to react on "button power.*" and "button/power.*" because
# of kernel changes.

event=button[ /]sleep
action=/etc/acpi/sleepbtn.sh "%e"

Example 4. /etc/acpi/sleepbtn.sh

#!/bin/sh
# /etc/acpi/sleepbtn.sh
# Initiates a suspend when the sleep button has been pressed

#  Initial settings
exec >> /dev/null 2>&1
umask 0077
PATH="/sbin:/bin:/usr/sbin:/usr/bin"
# These are troublesome modules you wish to remove prior to suspending
MODULES=""

# Suspend
echo "Going to sleep at `date`"
echo -n "* remove modules:"
for i in $MODULES; do
	echo -n " $i"
	rmmod $i
done
echo ""
echo "* sending commands"
echo -n "shutdown" > /sys/power/disk
echo -n "disk" > /sys/power/state

# Resume
echo ""
echo "Back from sleep at `date`"
echo -n "* inserting modules:"
for i in $MODULES; do
	echo -n " $i"
	modprobe $i
done
echo ""
echo "* done"
echo ""

# Done
exit 0