UNIX for Dummies Questions & Answers

Both C and C++ are used a lot to write applications for Linux, as you ask, so I think you are set.

will be a useful thread for me also

Also, if you strace common LINUX tools, you can see all the C calls to the kernel that make it work. This can be very educational. Learn to use strace, starting on something simple like date.

Still i dint get a better picture..

A few questions:-

1) What are you interested in, (hobby)?
2) Would your hobby involve the use of computers?
3) If yes, then create an app' applicable to your hobby.
If no......
4) Do you want to create an app' expecting re-imbursement?
5) Alternatively, do you intend to create an app' for GPL or any other licence that allows _free_ usage?
6) Does your potential idea need to be platform independent? <- Seriously difficult!
7) Are there similar packages available?
8) If yes, then you have to be seriously good to compete against the big guns.
9) If no, go for your hobby app'.

An example, if you are a railway modeller then how about a track layout design using existing track pieces from a known source like Triang-Hornby. This requires lots of internet research and maybe purchasing individual track pieces to get all the sizes, shapes, depths of curves, point angles, etc... etc...

My pet love is creating simple measuring gear using the Terminal, Command Promtp, CLI, or whatever it may be named for the platform involved. I ask no payment, and usually give it away as PD...