Added random_wallpaper.sh

2 files changed, 39 insertions, 0 deletions

diff --git a/README.md b/README.md
index 20fd8f2..68ed80f 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,9 @@ Provides a collection of handy ~/bin scripts.
     i3lock. Takes a screenshot of the current screen, blurs and desaturates,
     then sets as the lock screen background.
 
+*   **random_wallpaper.sh**: Randomly selects an image from the given path
+    (presumably a wallpapers directory) and sets that image as the wallpaper.
+
 *   **screenshot.sh**: Takes a three-second-delayed drag select screenshot from
     the command line. Useful for i3 users who set up hotkeys that call scripts.
 
diff --git a/random_wallpaper.sh b/random_wallpaper.sh
new file mode 100755
index 0000000..df0624a
--- /dev/null
+++ b/random_wallpaper.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+#
+# Recursively searches the specified directory (the first script argument),
+# randomly selects one image, and set that image as the wallpaper.
+#
+# Usage:
+#   random_wallpaper.sh /path/to/wallpapers
+#
+# Requirements:
+#   feh
+#
+
+# Check for feh
+which feh 2>/dev/null 1>/dev/null
+if [[ $? == 1 ]]; then
+  echo "Required program 'feh' not found. Please install and run again."
+  exit 1
+fi
+
+# Make sure a wallpaper path was specified
+if [[ -z $1 ]]; then
+  echo "Please specify a wallpaper path."
+  exit 1
+fi
+
+# This needs to be set if scheduling in crontab since crontab don't have
+# displays
+# export DISPLAY=:0
+
+search_path=$1
+
+# Randomly select a wallpaper to set
+picture=$(find ${search_path} -type f -name '*.jpg' -o -name '*.png' | sort -R | head -n 1)
+
+# Set the wallpaper
+feh --bg-fill "${picture}"