Double tab function to find command completion not working on SITL

[yonatan (Yonatan Woldegiorgis)]

Hello, I am a beginner at using Ardupilot and SITL. It has been days since I have been trying to graph the vehicle state of the default quadcopter when running sim_vehicle.py. The problem is I could not find the command to graph different vehicle states, such as altitude. Typing “graph” and double tab should have given the completion list for graphing, but it is not working for me. The double tab function works before I run sim_vehicle.py; however, after I run it and try to use the function to find lists of commands to graph vehicle state, it does not work.

I have followed the instructions on the following Ardupilot discussion but it still have not solved the problem

Shell completion for Tools

Hello friends, What has always bother me on ArduPilot development was the lack of completion on the tools we used. Our command-line commands can be quite long and memorizing them when we aren’t using them every day could be a pain. To reduce this pain and allow newcomers to have some more help, I have made some shell completion for waf and sim_vehicle.py. For those that don’t know what it is, the completion system allows you type the start of a word or command and let the system complete it…

I do not know where else to find a resource to fix this problem so I need help in either solving the problem by fixing the double tab function or if anyone can share where I can find a list of all MAVproxy commands for all the modules.