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

.bin/ssd_life

@@ -0,0 +1,51 @@
+#!/bin/bash
+
+#######################################
+# Variables                           #
+#######################################
+
+SSD_DEVICE="/dev/sda"
+
+ON_TIME_TAG="Power_On_Hours"
+WEAR_COUNT_TAG="Wear_Leveling_Count"
+LBAS_WRITTEN_TAG="Total_LBAs_Written"
+LBA_SIZE=512 # Value in bytes
+
+BYTES_PER_MB=1048576
+BYTES_PER_GB=1073741824
+BYTES_PER_TB=1099511627776
+
+#######################################
+# Get total data written...           #
+#######################################
+
+# Get SMART attributes
+SMART_INFO=$(sudo /usr/sbin/smartctl -A "$SSD_DEVICE")
+
+# Extract required attributes
+ON_TIME=$(echo "$SMART_INFO" | grep "$ON_TIME_TAG" | awk '{print $10}')
+WEAR_COUNT=$(echo "$SMART_INFO" | grep "$WEAR_COUNT_TAG" | awk '{print $4}' | sed 's/^0*//')
+LBAS_WRITTEN=$(echo "$SMART_INFO" | grep "$LBAS_WRITTEN_TAG" | awk '{print $10}')
+
+# Convert LBAs -> bytes
+BYTES_WRITTEN=$(echo "$LBAS_WRITTEN * $LBA_SIZE" | bc)
+MB_WRITTEN=$(echo "scale=3; $BYTES_WRITTEN / $BYTES_PER_MB" | bc)
+GB_WRITTEN=$(echo "scale=3; $BYTES_WRITTEN / $BYTES_PER_GB" | bc)
+TB_WRITTEN=$(echo "scale=3; $BYTES_WRITTEN / $BYTES_PER_TB" | bc)
+
+# Output results...
+echo "------------------------------"
+echo " SSD Status:   $SSD_DEVICE"
+echo "------------------------------"
+echo " On time:      $(echo $ON_TIME | sed ':a;s/\B[0-9]\{3\}\>/,&/;ta') hr"
+echo "------------------------------"
+echo " Data written:"
+echo "           MB: $(echo $MB_WRITTEN | sed ':a;s/\B[0-9]\{3\}\>/,&/;ta')"
+echo "           GB: $(echo $GB_WRITTEN | sed ':a;s/\B[0-9]\{3\}\>/,&/;ta')"
+echo "           TB: $(echo $TB_WRITTEN | sed ':a;s/\B[0-9]\{3\}\>/,&/;ta')"
+echo "------------------------------"
+echo " Mean write rate:"
+echo "        MB/hr: $(echo "scale=3; $MB_WRITTEN / $ON_TIME" | bc | sed ':a;s/\B[0-9]\{3\}\>/,&/;ta')"
+echo "------------------------------"
+echo " Drive health: ${WEAR_COUNT} %"
+echo "------------------------------"