Mandar mail al iniciar el equipo y al apagarlo

Autor: Linuxaria
Descripción: Init Script que manda un correo electrónico al iniciar o apagar el sistema
Visto en Linuxaria

#!/bin/sh
# chkconfig: 2345 99 01
# Description: Sends an email at system start and shutdown
 
#############################################
#                                           #
# Send an email on system start/stop to     #
# a user.                                   #
#                                           #
#############################################
 
EMAIL="example@example.com"
RESTARTSUBJECT="["`hostname`"] - System Startup"
SHUTDOWNSUBJECT="["`hostname`"] - System Shutdown"
RESTARTBODY="This is an automated message to notify you that "`hostname`" started successfully.
 
Start up Date and Time: "`date`
SHUTDOWNBODY="This is an automated message to notify you that "`hostname`" is shutting down.
Shutdown Date and Time: "`date`
LOCKFILE=/var/lock/subsys/SystemEmail
RETVAL=0
 
# Source function library.
. /etc/init.d/functions
 
stop()
{
echo -n $"Sending Shutdown Email: "
echo "${SHUTDOWNBODY}" | mail -s "${SHUTDOWNSUBJECT}" ${EMAIL}
RETVAL=$?
 
if [ ${RETVAL} -eq 0 ]; then
rm -f ${LOCKFILE}
success
else
failure
fi
echo
return ${RETVAL}
}
 
start()
{
echo -n $"Sending Startup Email: "
echo "${RESTARTBODY}" | mail -s "${RESTARTSUBJECT}" ${EMAIL}
RETVAL=$?
 
if [ ${RETVAL} -eq 0 ]; then
touch ${LOCKFILE}
success
else
failure
fi
echo
return ${RETVAL}
}
 
case $1 in
stop)
stop
;;
 
start)
start
;;
 
*)
 
esac
exit ${RETVAL}

Damos los permisos necesarios 

chmod u+x /etc/init.d/mailme 


Para probarlo podemos ejecutar: 

/etc/init.d/mailme start 

/etc/init.d/mailme stop 


Configuramos con chkconfig para que corra en un nivel determinado del sistema 

chkconfig --levels 3 mailme on