diff --git a/dotfiles-old/bin/rotate b/dotfiles-old/bin/rotate
new file mode 100755
index 0000000..2195ce5
--- /dev/null
+++ b/dotfiles-old/bin/rotate
@@ -0,0 +1,33 @@
+#!/bin/sh
+set -e
+
+ROTATION_FILE="$HOME/.rotation"
+SCREEN="$1"
+
+_core(){
+	case "$1" in
+	1)	xrandr --output "$SCREEN" --rotate normal	;;
+	2)	xrandr --output "$SCREEN" --rotate left	;;
+	3)	xrandr --output "$SCREEN" --rotate inverted	;;
+	4)	xrandr --output "$SCREEN" --rotate right	;;
+	*)	return 1
+	esac
+	return 0
+}
+
+if [ -e "$ROTATION_FILE" ]
+then	ROTATION="$(dd <"$ROTATION_FILE" 2>/dev/null)"
+	if ! _core "$ROTATION"
+	then	_core 1
+		ROTATION=2
+	else	ROTATION=$(printf "%s + 1\n" "$ROTATION" | bc)
+		! [ "$ROTATION" -gt 4 ] \
+			|| ROTATION=1
+	fi
+else	_core 1
+	ROTATION=2
+fi
+
+printf "%s\n" "$ROTATION" >"$ROTATION_FILE"
+
+exit 0