Added an update script

bash_profile

@@ -59,3 +59,14 @@ netinfo(){
 pinfo(){
     top -pid `pgrep $1 | tr "\\n" "," | sed 's/,$//' | sed -e's/,/ -pid /g'`
 }
+
+update(){
+    echo "Updating homebrew formulae"
+    brew update > /dev/null
+    echo "Updating installed sources(Homebrew)"
+    brew upgrade outdated &> /dev/null
+    echo "Updating MacPorts (sudo required)"
+    sudo port selfupdate > /dev/null
+    echo "Updating installed sources(MacPorts)"
+    sudo port upgrade outdated > /dev/null
+}