Updating script

bin/update_bashrc.sh

@@ -12,9 +12,9 @@ if [[ $? != 0 ]]; then
 
 # Environment variable settings for MongoDB.
 export MONGODB_SERVER="server"
-export MONGODB_USERNAME="$USER"
+export MONGODB_USERNAME="\$USER"
 export MONGODB_PASSWD="your password"
-export MONGODB_DB="$USER"
+export MONGODB_DB="\$USER"
 EOF
     echo "Now edit the ~/.bashrc file."
 fi