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Editing File: /etc/needrestart/restart.d/dbus.service

#!/bin/sh

# needrestart - Restart daemons after library updates.
#
# Restart dbus and affiliated services under systemd using a procedure
# suggested by @Vladimir-csp in github issue #44.
#

# enable xtrace if we should be verbose
if [ "$NR_VERBOSE" = '1' ]; then
    set -x
fi

# check if there is a Display Manager running
STATE_DM=$(systemctl show display-manager --property=ActiveState)

# prepare well-known list of services requiring restart after restarting D-Bus
RESTART_CHK="NetworkManager.service"
RESTART_SVC="systemd-logind.service systemd-journald.service"
for svc in $RESTART_CHK; do
    if [ "$(systemctl show $svc --property=ActiveState)" = 'ActiveState=active' ]; then
        RESTART_SVC="$RESTART_SVC $svc"
    fi
done

# stop Display Manager if running
if [ "$STATE_DM" = 'ActiveState=active' ]; then
    systemctl stop display-manager.service
fi

# restard D-Bus
systemctl restart dbus.service

# reexec systemd
systemctl daemon-reexec

# restart daemons that directly depend on D-Bus
systemctl restart $RESTART_SVC

# start Display Manager again
if [ "$STATE_DM" = 'ActiveState=active' ]; then
    systemctl start display-manager.service
fi

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