File knetworkmanager.default.sh of Package NetworkManager-kde
kdehome=$HOME/.kde
test -n "$KDEHOME" && kdehome=`echo "$KDEHOME"|sed "s,^~/,$HOME/,"`
knetworkmanager_autostart=
if test ! -f $kdehome/share/config/knetworkmanagerrc; then
knetworkmanager_autostart=$(. /etc/sysconfig/network/config && echo "$NETWORKMANAGER")
elif test $kdehome/share/config/knetworkmanagerrc -ot /etc/sysconfig/network/config; then
knetworkmanager_autostart=$(. /etc/sysconfig/network/config && echo "$NETWORKMANAGER")
fi
# kconfig will merge it in case we overwrite another setting
if test -n "$knetworkmanager_autostart"; then
mkdir -p $kdehome/share/config
echo "[General]" >> $kdehome/share/config/knetworkmanagerrc
echo "Autostart=$knetworkmanager_autostart" >> $kdehome/share/config/knetworkmanagerrc
fi