Try my random wallpaper script!

[Greg]

I may have posted this ages ago but I've made some improvements since. It's a script to download a random wallpaper off of interfacelift.com at a user defined interval and set it as the background.

It requires lynx (run "sudo apt-get install lynx" on Ubuntu). And make sure to set your resolution and the save directory at the top of the script.

Here it is, wallpaperer2.sh:

#!/bin/bash
#version 2


RESOLUTION="1920x1080"

SAVEDIR="/home/greg/Pictures/Wallpaperer2/"

TIME="5" #default sleep time in minutes


if [[ -n $1 ]] ;
then TIME=$1
fi

cd

SLEEP="0"

FETCH()
{

if [ "$RESOLUTION" = "1920x1080" ];
then IFURL="http://interfacelift.com/wallpaper/downloads/random/hdtv/"
elif [ "$RESOLUTION" = "1024x768" ] || [ "$RESOLUTION" = "1280x960" ] || [ "$RESOLUTION" = "1280x1024" ] || [ "$RESOLUTION" = "1400x1050" ] || [ "$RESOLUTION" = "1400x1050" ];
then IFURL="http://interfacelift.com/wallpaper/downloads/random/fullscreen/$RESOLUTION/index.php"
elif [ "$RESOLUTION" = "1280x800" ] || [ "$RESOLUTION" = "1440x900" ] || [ "$RESOLUTION" = "1680x1050" ] || [ "$RESOLUTION" = "1920x1200" ] || [ "$RESOLUTION" = "2560x1440" ] || [ "$RESOLUTION" = "2560x1600" ];
then IFURL="http://interfacelift.com/wallpaper/downloads/random/widescreen/$RESOLUTION/index.php"
fi


echo -n "Requesting page source... "
lynx -dump $IFURL > /tmp/index.temp
echo "Done."

IMAGEURL=`cat /tmp/index.temp | grep -m 1 "$RESOLUTION.jpg" | cut -b 7-`

echo -n "Downloading wallpaper... "
lynx --source $IMAGEURL > wallpaperer2.jpg.temp
echo "Done."

NUM=$[`cat /tmp/index.temp | grep -m 1 $RESOLUTION.jpg | cut -b3-4`+1]
NAME=`cat /tmp/index.temp | grep -m 1 $NUM | cut -b5-`
NUM=$[$NUM+1]
INFOSTART=`cat /tmp/index.temp | grep -m 1 $NUM | cut -b8-9`
LINESTART=`cat /tmp/index.temp | grep -m 1 -n $NUM | cut -b1-2`
NUM=$[$NUM+1]
INFOSTOP=`cat /tmp/index.temp | grep -m 1 $NUM | cut -b5-6`
LINESTOP=$[`cat /tmp/index.temp | grep -m 1 -n $NUM | cut -b1-2`-1]

echo -n "Creating info file... "
echo -e "\n   $NAME" > wallpaperer2.txt
echo "   By `awk 'NR=='$LINESTART /tmp/index.temp | cut -b11-`" >> wallpaperer2.txt
LINESTART=$[LINESTART+1]
echo -e "`awk 'NR=='$LINESTART',NR=='$LINESTOP /tmp/index.temp`\n" >> wallpaperer2.txt
echo "Done."

echo -n "Setting wallpaper... "
mv wallpaperer2.jpg.temp wallpaperer2.jpg
gconftool-2 -t str --set /desktop/gnome/background/picture_filename "$PWD/wallpaperer2.jpg"
echo "Done."

DISPLAY

} #end fetch



DISPLAY()
{
clear

cat wallpaperer2.txt

if [ "$SLEEP" = "1" ];
then echo -e "Saved. Sleeping for $TIME minutes."; SLEEP="0"
else echo -e "Sleeping for $TIME minutes."
fi

MINUTES=$[$TIME*60]
read -t $MINUTES -p "[Q]uit / [S]ave & Sleep / [D] Save & Fetch / [F]etch Now  " -n 1 INPUT

if [ "$INPUT" = "f" ];
then clear; echo "Fetching now."; FETCH
elif [ "$INPUT" = "d" ];
then cp wallpaperer2.jpg "$SAVEDIR"/"$NAME".jpg; clear; echo "Saved.  Fetching now."; FETCH
elif [ "$INPUT" = "q" ];
then clear; echo "Exiting."; exit
elif [ "$INPUT" = "s" ];
then cp wallpaperer2.jpg "$SAVEDIR"/"$NAME".jpg; SLEEP="1"; DISPLAY
elif [ "$INPUT" = "=" ] || [ "$INPUT" = "+" ] ;
then TIME=$[ $TIME + 1 ]; DISPLAY
elif [ "$INPUT" = "-" ] ;
then {
if [[ $TIME -eq 1 ]] ;
then echo "Can't do 0."; DISPLAY
else TIME=$[ $TIME - 1 ]; DISPLAY
fi
}
fi

clear
FETCH

} #end display


if [ -e wallpaperer2.txt ] && [ -e wallpaperer2.jpg ];
then DISPLAY
else FETCH
fi

Save it in your home directory, open a terminal, chmod +x scriptname, ./scriptname

You can give the sleep time as an argument and also increment it using + and - once it's running.

It's kinda hacky scripting but it works. For me, at least. Tested on Ubuntu Lucid. It probably won't work with KDE how it is but if you can find the command to set the wallpaper it'd be easy to stick in there. Let me know how it works for you and if you can think of any improvements.

 

[kmote]

Very cool. Works great for me (also on lucid).

Haven't read it completely yet (should have done so before I ran it but I'll trust you on this occasion ) but could you remove the dependency on lynx by using wget? I believe that unlike lynx, it comes with most systems out of the box.

 

[Greg]

Nice! Thanks for testing it.

I think I remember trying to use wget originally but it had problems grabbing the web page since Interfacelift uses PHP.

 

[kmote]

That shouldn't have been an issue... I'll try to write a patch when I get home if you want...

 

[Greg]

Well it's not a big concern to me but feel free to mess with it. I'm sure you can see lines 33 and 39 are where lynx grabs the web page and downloads the .jpg.