Personal Help with Darwin-OP Simulation

To add New Directories to a my git Repositories

• Tells me the current status : i.e. if I have new files to add or if I have deleted any files etc…

git status 

• Adds the file/folder(and the files inside it)

git add Darwin_Optimal_Preview_Control_Walking/

• commits the changes that I just did with the particular title

git commit -m 'Optimal Preview Controller'

• Updates my site , it requests for my user name and password :[B-R]; why do u always get it wrong ;

git push -u origin master

• To open Bashrc

gedit ~/.bashrc

• For sourcing

source .....

(and then paste it in bashrc)
Trying to Learn ROS