#!/bin/sh -x

# FILE: setbg-bsd
# AUTHOR: Greg Schenzel
# DESCR: This is the Bourne Shell version of my "setbg" script.
#   It requires the following:
#     random(6) of bsdgames, hence the name
#     xdpyinfo(1) of X11R6
#     qiv(1), image viewer
#     sh/awk/ls/grep/wc, standard unix tools
# NOTE: Instead of depending on the ksh(1) and bc(1) programs, this
#   depends on the random(6) bsd game. Therefor, it is more likely to
#   work BSD operating systems and systems without a ksh implementation.
#   If you run Linux and don't have either bsdgames or ksh installed,
#   then you need one or the other. Debian users can apt-get the
#   bsdgames package.

IMGS='*.jpg *.png *.gif *.bmp'

cd ~/backgrounds/`xdpyinfo | grep dimensions | awk '{print $2}'`
COUNT=`/bin/ls ${IMGS} | wc -l`

random -e ${COUNT}
SEL=$?

IMG=`/bin/ls ${IMGS} | awk '{line[NR-1] = $0}  END {print line['${SEL}']}'`

qiv --bg_color "#7a8f9e" --root "$IMG"