Headless Server, wie handhabt Ihr Timer und Wakeup?

#!/bin/sh
#
# VDR shutdown hook for at - Dieter Fauth
# --------------------------
#
# This shutdown hook sets the wakeup time for the next timer using
# at. Good if vdr runs on a server.
#


logit91()
{
  logger -p local0.notice -- S91.custom: $*
}


LOGONOFF=/var/log/vdr_onoff.log


TimeToAtString()
{
    echo $(perl -e "(\$s,\$mi,\$h,\$d,\$mo,\$y,\$t,\$t,\$t)=\
    localtime($1); printf("%02d%02d %04d-%02d-%02d",\
    \$h,\$mi-2,\$y+1900,\$mo+1,\$d);")
}


SetAtTime()
{
    TIME=`TimeToAtString $1`
    logit91 "Setting at alarm time to: $TIME"
    echo "service vdr start" | at $TIME
    shift
    shift
    echo "OFF   " `date +%F\ %H:%M` "sheduled at $TIME ($*)" >>$LOGONOFF
}


SetAtTime $*
exit 0

#!/bin/sh
# vdr-addon-atwakup - Tries to wake the PC at a given time - Dieter Fauth
# Ensure you run this script after any access to hwclock takes place.
# The RTC-writer is implemented as a SYS-V init script, so this is ok for Ubuntu 16.04.
# Designed to work with yaVDR and e-tobi Packets. You could also use the RTC-Writer standalone without a VDR,
#     but then a much simpler script would do this taks as well.
#
# Difference to the vdr-addon-acpiwakup:
# acpi-wakup is perfect if the PC is running vdr as main task.
# For PCs (server) that run vdr only as one of many other tasks, we need a way to start/stop vdr and also maintain the RTC.
# The "at" command is used to start vdr if the server is already up and running, The RTC is used to wakeup the server.
# Most likly you want a regular waking time e.g. every moring at 7:00. Add it to the vdr-addon-atwakeup.conf.
#
# A separate scipt needs to shutdown the server if there is noting to do. This script is not included yet.
#
# Currently only the UTC mode for the RTC is supported, but a check is made for this condition,
#     so you can find the right place to add support for local timezone.
#
# The addon uses these files:
#     /etc/vdr/vdr-addon-atwakeup.conf        # Configuration
#    /usr/share/vdr/shutdown-hooks/S91.atwakeup    # RTC-Writer
#    /etc/init.d/vdr-addon-atwakeup            # VDR shutdown script
# Create the links for SYS-V init in rc1.d and rc6.d
# sudo update-rc.d vdr-addon-atwakeup defaults
#
# The scripts create/update these files:
#    /var/cache/vdr/wakeup.time
#    /var/log/vdr_onoff.log