Add more scripts

.bin/backlight.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+current=`xbacklight -get`
+# alternatively, if xbacklight does not work:
+# current=`qdbus org.gnome.SettingsDaemon.Power /org/gnome/SettingsDaemon/Power org.gnome.SettingsDaemon.Power.Screen.GetPercentage`
+
+scale="1 2 5 10 20 50 100"
+
+case $1 in
+    "down")
+        # translate space to newline so tac will reverse order of lines (values)
+        for val in $(tr ' ' '\n' <<< $scale | tac) ; do
+            # scale = 3 to preserve some decimal values
+            if (( $(bc <<< "scale=3 ; $val < $current/1.1") )) ; then
+                newval=$val
+                break
+            fi
+        done
+        ;;
+    "up")
+        for val in $scale ; do
+            # scale = 3 to preserve some decimal values
+            if (( $(bc <<< "scale=3 ; $val > $current*1.1") )) ; then
+                newval=$val
+                break
+            fi
+        done
+        ;;
+    *)
+        echo "Usage: $0 [up, down]"
+        exit 1
+esac
+
+if [ "x$newval" == "x" ] ; then
+    echo "Already at min/max."
+else
+    echo "Setting backlight to $newval."
+
+    # thanks: https://bbs.archlinux.org/viewtopic.php?pid=981217#p981217
+    notify-send " " -i notification-display-brightness-low -h int:value:$newval -h string:x-canonical-private-synchronous:brightness &
+
+    xbacklight -set $newval -steps 1 -time 0
+    # alternatively, if xbacklight does not work:
+    # qdbus org.gnome.SettingsDaemon.Power /org/gnome/SettingsDaemon/Power org.gnome.SettingsDaemon.Power.Screen.SetPercentage $newval
+fi
+
+exit 0