Fixed wifi block, wrote own CPU usage script

Closes #40. Also added file listing USB OS's and made change-sink handle
both DAC names.

configs/i3blocks-scripts/wifi

@@ -17,8 +17,6 @@
 #------------------------------------------------------------------------
 
 INTERFACE="${BLOCK_INSTANCE:-wlan0}"
-echo $INTERFACE
-# INTERFACE="${INSTANCE}"
 
 #------------------------------------------------------------------------
 
@@ -29,23 +27,24 @@ echo $INTERFACE
 
 #------------------------------------------------------------------------
 
-QUALITY=$(grep $INTERFACE /proc/net/wireless | awk '{ print int($3 * 100 / 70) }')
-echo $QUALITY
+QUALITY=$(sudo grep $INTERFACE /proc/net/wireless | awk '{ print int($3 * 100 / 70) }')
 W_inter=$(ip link | grep "[1-9]: wlp" | cut -d " " -f2 | tr -d ':')
 W_name=$(nmcli d | grep "$W_inter" | awk '{print $4}')
 
 #------------------------------------------------------------------------
 
 # echo $QUALITY% "$W_name" # full text
-echo $QUALITY% # short text
+# echo $QUALITY% # short text
+. "/home/kevin/.cache/wal/colors.sh"
+printf "%s%%\n\n%s\n" $QUALITY $color7
 
 # color
-if [[ $QUALITY -ge 80 ]]; then
-    echo "#00FF00"
-elif [[ $QUALITY -lt 80 ]]; then
-    echo "#FFF600"
-elif [[ $QUALITY -lt 60 ]]; then
-    echo "#FFAE00"
-elif [[ $QUALITY -lt 40 ]]; then
-    echo "#FF0000"
-fi
+# if [[ $QUALITY -ge 80 ]]; then
+    # echo "#00FF00"
+# elif [[ $QUALITY -lt 80 ]]; then
+    # echo "#FFF600"
+# elif [[ $QUALITY -lt 60 ]]; then
+    # echo "#FFAE00"
+# elif [[ $QUALITY -lt 40 ]]; then
+    # echo "#FF0000"
+# fi