#!/bin/bash

# bash - we use %1

# see also ad1810-tachod
# joostvb@incagijs:~% xmessage Locked by $USER@`hostname`. Please give password. & ; xtrlock
# gnome-terminal -e foo # xterm -font foo-*-bar-* oid

if test -f ~/.a1-lock/img/*
then
    feh -FZ ~/.a1-lock/img/* &
else
    xterm -fullscreen -e a1-prompt &
fi

xtrlock

# this kill works fine on Debian GNU/Linux 8.4 (jessie)
# with /bin/sh -> /bin/bash (incagijs)
# and fails on Debian GNU/Linux 9.0 (stretch)
# with /bin/sh -> dash and feh 2.18-1
## kill %1

# this kill works fine on Debian GNU/Linux 9.0 (stretch),
# feh 2.18-1 (banach)
kill -KILL %1

# However, this:

# joostvb@banach:/srv...jes/2016/20160313/slides% feh ./slide_IMG_1439.JPG &
# [1] 4031
# joostvb@banach:/srv...jes/2016/20160313/slides% kill %1

# gives:

# [1]  + exit 143   feh ./slide_IMG_1439.JPG

# !?!?!