#!/bin/sh set -eu actions_icons='/usr/share/icons/gnome/16x16/actions' awk_who_script=' BEGIN { display_ere = " [(]" display "[)]$"; printed = 0; } { if (!match($0, display_ere)) { if (!printed) { print("\n\nThe following sessions will be " \ "hung up:\n"); printed = 1; } print(" " $0 ""); } } ' do_logout() { zenity --question --title='Log Out' \ --window-icon="${actions_icons}/system-log-out.png" \ --text='Are you sure you want to log out?' \ --ok-label='Log Out' --cancel-label='Cancel' && \ printf 'quit\n' >~/.xsessionmanage return 0 } do_shutdown() { zenity --question --title='Shut Down' \ --window-icon="${actions_icons}/system-shutdown.png" \ --text="Are you sure you want to shut down this system?$(who | \ awk -v "display=${DISPLAY}" "${awk_who_script}")" \ --ok-label='Shut Down' --cancel-label='Cancel' && \ sudo shutdown -hP now return 0 } do_reboot() { zenity --question --title='Reboot' \ --window-icon="${actions_icons}/system-shutdown.png" \ --text="Are you sure you want to reboot this system?$(who | \ awk -v "display=${DISPLAY}" "${awk_who_script}")" \ --ok-label='Reboot' --cancel-label='Cancel' && \ sudo reboot return 0 } do_s2mem() { zenity --question --title='Suspend' \ --window-icon="${actions_icons}/media-playback-pause.png" \ --text='Are you sure you want to suspend this system?' \ --ok-label='Suspend' --cancel-label='Cancel' && \ sudo dd of='/sys/power/state' <<-EOF mem EOF return 0 } do_s2disk() { zenity --question --title='Hibernate' \ --window-icon="${actions_icons}/media-playback-pause.png" \ --text='Are you sure you want to hibernate this system?' \ --ok-label='Hibernate' --cancel-label='Cancel' && \ sudo dd of='/sys/power/state' <<-EOF disk EOF return 0 } usage() { printf 'Usage: %s {logout|shutdown|reboot|s2mem|s2disk}\n' "${0}" return 0 } main() { local action= if [ ${#} -ne 1 ]; then usage 1>&2 return 1 fi action="${1}" shift 1 case "${action}" in 'logout' | 'shutdown' | 'reboot' | 's2mem' | 's2disk') "do_${action}" ;; *) usage 1>&2 return 1 ;; esac return 0 } main "${@}"