#!/usr/bin/bash
is_process_running_p()
{
pidid=$(pidof "$1" | sed -e 's|[ \t].*||')
if [ "x${pidid}" == "x" ] ; then
return 1
else
return 0
fi
}
check_manager_and_exec() {
is_process_running_p "$1" || return
exec $2
}
check_manager_and_exec "lxdm-binary" "lxdm -c USER_SWITCH" # LXDE
check_manager_and_exec "lightdm" "dm-tool switch-to-greeter" # XFCE and etc
check_manager_and_exec "gdm" "gdmflexiserver -ls" # GNOME
# KDE-like
check_manager_and_exec "sddm" \
"qdbus --system org.freedesktop.DisplayManager /org/freedesktop/DisplayManager/Seat0 org.freedesktop.DisplayManager.Seat.SwitchToGreeter"
# No registered login manager found
exit 1