added automatic/on login update feature

myzsh.sh

@@ -1,8 +1,15 @@
-# run weeklies
-newtimestamp=$(date +%Y%m%d)
-oldtimestamp=$($ZSH/lastrun)
-echo $newtimestamp
-echo $oldtimestamp
+# run myzsh update (every 7 days)
+timestamp=$(date +%s)
+lastrun=$(cat $ZSH/lastrun)
+if [ $((lastrun+604800)) -le $timestamp ]; then
+    echo -e "do you want to update myzsh? [y/n] \c"
+    read choice
+    if [ $choice = "y" ]; then
+        echo "running update of myzsh now.."
+        cd $ZSH; git pull origin master; cd -
+        echo $timestamp > $ZSH/lastrun
+    fi
+fi
 
 
 # load core