Background manager, setter, tiler, mirrorer, etc - using mostly feh and imagemagick

newwall.sh

#!/bin/bash

# Quite a bit of inspiration from https://gist.github.com/brycied00d/1190483
# I have a lot of backgrounds, and a laptop.  I use xinarama, so my DISPLAY is always 0:0
# But I wanted to have one randomizer that used feh (2.9.3 is the version I have) but actually showed resolution-appropriate images.
# I also wanted to be able to select the color - "tiled", "orange", "blue", "black", "simple", "wide" (hooray for symlinks) at times.

# Uses xrandr to see if there is an HDMI monitor attached (which in my use cases always means I am rocking two monitors

#sets background
if [ "$1" == "tile" ]; then
	#tiled, we don't care about splitting or how many monitors
	color="tile"
	#find 
	file=`find -P "/path/to/my/backgrounds/tiled" -mount -maxdepth 8 -type f | sort --random-sort | head -1`
	export DISPLAY=:0.0;feh --bg-tile "$file" 
else
	if [ "$1" == "" ]; then
		file=`find -H /path/to/my/backgrounds -type f \( -name "*.jpg" -or -name "*.png" -or -name "*.jpeg" \) | grep -v "tiled" | sort --random-sort | head -1`
	else
		color="$1"
		file=`ls -1 /path/to/my/backgrounds/$color/* | sort --random-sort | head -1`
	fi

	#do we have more than one monitor?
	hdmiconnected=`xrandr | grep "HDMI1 disconnected"`
	hdmivalue="HDMI1 disconnected (normal left inverted right x axis y axis)"
	# only one monitor
	if [ "$hdmiconnected" = "$hdmivalue" ]; then
		# we have one monitor
		export DISPLAY=:0.0;feh --bg-fill --no-xinerama "$file" 
	else
		#is the wallpaper wide enough to span both?
		imgwidth=`identify -format "%w" "$file"`
		if [ "$imgwidth" -lt "2000" ];then 
			#so we mirror it
			cp "$file" /tmp/wallpaper-0.jpg
			convert "$file" -flop /tmp/wallpaper-1.jpg
		else
			#we need to split wallpaper		
			nice -n 19 convert -crop 50%x100% +repage "$file" /tmp/wallpaper.jpg			
		fi
		DISPLAY=:0.0 feh --bg-scale /tmp/wallpaper-0.jpg /tmp/wallpaper-1.jpg &	
	fi
fi



#echo "$file"