Problem with the packet of ROS Hydro

edit

I'm using the ROS packet of Gazebo:

http://gazebosim.org/tutorials/?tut=ros_installing

sudo apt-get install ros-hydro-gazebo-ros-pkgs ros-hydro-gazebo-ros-control

But have problems when used:

roscd
rosmake
rosrun gazebo_ros gazebo

say:

roscd: no se encontró la orden
rosmake: no se encontró la orden

I have included this instruction in the .bashrc

source /opt/ros/hydro/setup.bash

When use "cd" and "make", example:

cd ~/NAO/nao_gazebo_plugin
~/NAO/nao_gazebo_plugin$ make
make: *** No se especificó ningún objetivo y no se encontró ningún makefile.  Alto.

I don't have problems with:

rosws init
rosws set

I want to know how I can solve this problems

A lot of thanks!!