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This is a script for us old-timers that can't get the hang of the systemd forced religion. If your like me, when ever I need to start or stop a service, my first inclination is to check /etc/init.d. Typical for me is to do something like /etc/init.d/dhcpd restart. With the introduction of the much bloated and maligned systemd finding the services and their correct name and spelling means jumping through hoops by typing systemctl --help; finding list-unit-files and typing systemctl list-unit-files and then looking through the list of units for the service it want. It's either that or cd into /usr/lib/systemd/system and do an ls.

To save time and the frustrations with the systemd way, I thought, wouldn't it be nice to all of the systemd services installed in /etc/init.d and functioning like the old init.d scripts did. So the other day while fitzing around with systemd, I decided to write this script. Basically each entry in init.d will act like the old init.d scripts so /etc/init.d/service has options start stop restart reload condrestart status enable disable. The script simply invokes the systemd equivilant command. It not only makes finding the services easier; ie. 'ls /etc/init.d' it faster and easier to start and stop services.

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#!/bin/sh
#
SCRIPTNAME=initdsystemd.sh
BASENAME=`basename $0`

# initdsystemd.sh fixed-that-for-you-script.  Copy this script into /etc/init.d using the name in the $SCRIPTNAME
# variable. Running this script using the SCRIPTNAME (/etc/init.d/$SCRIPTNAME) above will list all systemd
# services names and create softlinks in init.d that point back to this script.  This script will then provide each
# service with a init.d like wrapper that calls systemd using the $0 argument and provide command to control
# that systemd services.  Each service in init.d will have the following options:
# {start|status|stop|restart|condrestart|reload|enable|disable}

# CBS: 12/2015

if [ "$BASENAME" == "$SCRIPTNAME" ]; then
    TMPFILE=`mktemp`
    systemctl list-unit-files --type=service | grep -v static | cut -f 1 -d ' ' | sed s/.service//g > $TMPFILE

    for i in `cat $TMPFILE`
    do
           if [ "$1" == "clean" ]; then
            A=`find $i -maxdepth 1  -type l -ls | grep $SCRIPTNAME`
            if [ -n A ]; then
                rm $i
            fi
        else
            if [ ! -f /etc/init.d/$i ]; then
                 ln -s /etc/init.d/$SCRIPTNAME /etc/init.d/$i
            fi
        fi
    done
    rm $TMPFILE
    exit 0
fi

# Now the systemd wrapper command start|status|stop|restart|condrestart|reload|enable|disable
# enable and disable would normally be done with chkconfig but I put them here for convience.
start () {
    echo -n "Starting $BASENAME..."

    systemctl start $BASENAME

    RETVAL=$?
    if [ $RETVAL = 0 ]
    then
        echo "done."
    else
        echo "failed. See error code for more information."
    fi
    return $RETVAL
}

stop () {
    # stop daemon
    echo -n "Stopping $BASENAME..."

    systemctl stop $BASENAME
    RETVAL=$?

    if [ $RETVAL = 0 ]
    then
        echo "done."
    else
        echo "failed. See error code for more information."
    fi
    return $RETVAL
}


restart () {
    systemctl restart $BASENAME
}

condrestart () {
    systemctl condrestart $BASENAME
}

reload () {
    systemctl reload $BASENAME
}

enable () {
    systemctl enable $BASENAME
}

disable () {
    systemctl disable $BASENAME
}


status () {
    systemctl status $BASENAME
    return $?
}


case "$1" in
    start)
        start
    ;;
    status)
        status
    ;;
    stop)
        stop
    ;;
    restart)
        restart
    ;;
    condrestart)
        restart
    ;;
    reload)
        reload
    ;;
    enable)
        enable
        start
    ;;
    disable)
        stop
        disable
    ;;
    *)
        echo $"Usage: $BASENAME {start|status|stop|restart|condrestart|reload|enable|disable}"
        exit 3
    ;;
esac

exit $RETVAL



Enjoy. Hopefully this will help the old guys like me born and raised on the old init.d scripts.

syschuck wrote:With the introduction of the much bloated and maligned systemd finding the services and their correct name and spelling means jumping through hoops by typing systemctl --help; finding list-unit-files and typing systemctl list-unit-files and then looking through the list of units for the service it want. It's either that or cd into /usr/lib/systemd/system and do an ls.

FWIW, systemctl supports tab completion, so you could simply do systemctl status <tab> <tab> to get a list of all units, or e.g. for your example with dhcpd you could use systemctl status dhcp <tab>

and a

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service <service> <cmd>

redirects to systemctl.
example

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[root@kre010 alfred]# service network restart
Restarting network (via systemctl):                                                                                                  [  OK  ]
[root@kre010 alfred]# service cups stop
Redirecting to /bin/systemctl stop cups.service
Warning: Stopping cups.service, but it can still be activated by:
  cups.socket
  cups.path


All good to note. I added a 'clean' option to the script so it will clean the symlinks if someone wants to give it a test drive but doesn't like it. The usage is the same: /etc/init.d/initdsystemd.sh would create the sysmlinks for the services and /etc/init.d/initdsystemd.sh clean will remove them.