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how to Create the src/talker.cpp

asked 2014-07-09 07:42:36 -0600

beginner_alex gravatar image


im new to ROS and i've been doing the tutorials so far till the point it says create the src/talker.cpp file and i have no clue how to that. can someone please tell me how to do it.

thanks, alex

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answered 2014-07-09 15:42:45 -0600

ccapriotti gravatar image

Alex, what our crowd here means is the following:

As you probably already know, ROS is not an operating system per se (contrary to what the name leads you to believe), but a giant library of applications that, integrated, will be able to control a robot.

Let's call ROS here, in this context, a layer.

Now that layer depends on another, which is the operating system. In most cases, ROS runs on some variation of unix, typically linux, and on unix pretty much everything is a file, or treated as a file.

More to the point, when instructions tell you to create a file like that, they actually mean : open your preferred text editor, write your code, and save it with name X".

Depending on which variation of unix you have, different text editors will be available.

If you are using a terminal (text based commands, which I think you are), try

nano src/talker.cpp

It is a simple text editor with some hints of its usage at the bottom of the screen.

Or, if you are using a GUI, AND a terminal on it, you can try

gedit src/talker.cpp

which will probably bring up a nice graphical text editor, which is pretty much user friendly.

As you progress in code complexity, other editors, or even programming environments may become more suitable, but for simple stuff, stick to the basics.

Now, if life finally starts to make sense with all of this blah blah of mine, I would suggest that you take some time and learn a bit more about typical unix commands, most likely "bash" commands. That will come in handy.

Have fun !

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answered 2014-07-11 08:29:23 -0600

beginner_alex gravatar image

ccapriotti thanks alot. i was just confused to which editor i should be using (GNU EMACS or VIM)

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Please do not create answers for discussion or comments. Instead, either edit and append to your original post or use the comment functionality.

dornhege gravatar imagedornhege ( 2014-07-11 08:47:34 -0600 )edit

answered 2014-07-09 07:47:20 -0600

dornhege gravatar image

This just means: Open a text/code editor and save as src/talker.cpp.

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answered 2014-07-09 08:09:11 -0600

Captcha gravatar image

updated 2014-07-09 08:09:46 -0600

create a folder named "src" and then just add a document named "talker.cpp" inside !

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Asked: 2014-07-09 07:42:36 -0600

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Last updated: Jul 11 '14