syncing

update-bl

@@ -0,0 +1,22 @@
+#!/bin/zsh
+
+tail -f ~/.config/xob/xobpipe | xob -s volume &
+if [[ $# -eq 2 ]]; then
+  CHANGE=$1
+  TARGET_FILE=$2
+elif [[ $# -eq 3 ]]; then
+  CHANGE=`expr 0 - $2`
+  TARGET_FILE=$3
+else
+  echo "Improper usage. To increase a value in a file,\nupdate-bl [change] [target_file]."
+  echo "To decrease a value in a file,\nupdate-bl --decrease [change] [target_file]."
+fi
+
+OLDNUM=`cut -f1 $TARGET_FILE`
+NEWNUM=`expr $OLDNUM + $CHANGE`
+
+if [[ $NEWNUM -le 100 && $NEWNUM -ge 0 ]]; then
+  sed -i "s/$OLDNUM/$NEWNUM/g" $TARGET_FILE
+  brightnessctl set $NEWNUM%
+  echo $NEWNUM >> ~/.config/xob/xobpipe
+fi