ROSRUN missing command

edit

On an Ubuntu 14.04 with Indigo (installed a while ago) and recently updated to catkin_tools, I miss the rosrun command, cant run any node, the error in terminal is rosrun: command not found, while all other other commands are present:

rosbag                        roslocate
rosclean                      rosmaster
rosco                         rosmsg
rosconsole                    rosmsg-proto
roscore                       rosnode
rosdep                        rospack
rosdep-source                 rosparam
rosdistro_build_cache         rosservice
rosdistro_migrate_to_rep_141  rossrv
rosdistro_migrate_to_rep_143  rosstack
rosdistro_reformat            rostest
rosgraph                      rostopic
rosinstall                    rosunit
roslaunch                     rosversion
roslaunch-complete            rosws
roslaunch-deps                roswtf
roslaunch-logs

In my .bashrc I have:

source /opt/ros/indigo/setup.bash 
source TE_workspace/devel/setup.bash
export ROS_PACKAGE_PATH=$ROS_PACKAGE_PATH:~/TE_workspace/src

where $ROS_PACKAGE_PATH is after exporting /opt/ros/indigo/share:/opt/ros/indigo/stacks:/home/user/TE_workspace/src

What am I missing? What could be the problem?