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README.md

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+# Nitrogen Random
+
+Simply changes your nitrogen desktop wallpaper to a random image from provided folder.
+
+### How to run ###
+Edit the script and make all variables valid:
+
+BGSAVED is the path to bg-saved.cfg of nitrogen, must be in your .config/nitrogen folder.
+
+WALLPAPERS is the path to a folder where all your wallpapers are located.
+
+You may also put it to crontab.

nitrogen-random.sh

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+#!/bin/bash
+
+BGSAVED=/home/<user>/.config/nitrogen/bg-saved.cfg
+WALLPAPERS=/home/<user>/Pictures/wallpapers/
+MODE=4
+
+export DISPLAY=:0
+
+FILENAME="$(ls ${WALLPAPERS} | shuf -n 1)"
+
+echo '[xin_0]' > ${BGSAVED}
+echo "file=${WALLPAPERS}/${FILENAME}" >> ${BGSAVED}
+echo "mode=${MODE}" >> ${BGSAVED}
+echo 'bgcolor=#000000' >> ${BGSAVED}
+
+/usr/bin/nitrogen --restore
+# or just 
+# nitrogen --restore