How to program in c/c++ in Linux

mq15 · 04-15-2009, 08:46 AM

I know programming in c/c++ in Windows environment, but I know little about c/c++ programming in Linux,please help

Regards

pixellany · 04-15-2009, 08:55 AM

One slightly flip answer is that "Programming is Programming"---i.e. you have to set up an environment with libraries, header files, etc. + a compiler.

The standard Linux compiler is GCC, and may already be installed. Beyond that, what kinds of programs do you want to build? For example, if you want graphical apps, you will need something like the Qt or Gtk toolkits.

I recommended buying (and reading) Beginning Linux Programming, Matthew and Stones, published by Wrox

mq15 · 04-15-2009, 09:52 AM

thanks pixellany

I am going to implement my protocol. Now if I have GCC compiler already installed, I don't know how to use GCC for compilation, and after that I would also use some debugger. But I know nothing. Please be generous enough and explain me in sufficient details.
Regards.

pixellany · 04-15-2009, 11:03 AM

Quote:

Originally Posted by mq15

thanks pixellany

I am going to implement my protocol. Now if I have GCC compiler already installed, I don't know how to use GCC for compilation, and after that I would also use some debugger. But I know nothing. Please be generous enough and explain me in sufficient details.
Regards.

I don't know what you mean by "implement my protocol".

Do some Google searches on GCC---there are lots of manuals and tutorials out there. (And get the book I suggested.)

schneidz · 04-15-2009, 01:06 PM

Code:

hyper> cat hello.c
#include "stdio.h"

main(int argc, char *argv[])
{
 printf(" hello world \n");
}
hyper> gcc -g hello.c -o hello.x
hyper> hello.x
 hello world

man gcc
man gdb

for more info

mq15 · 04-16-2009, 03:56 PM

Thanks
When I type hyper> cat hello.c is:
hyper> cat hello.c
bash: hyper: command not found

Also I compiled hello.c as:
#gcc hello.c
this command created a.out file,now I dont know how to run this file or make any executible (i.e .exe) file.

Please help me.

jstephens84 · 04-16-2009, 03:59 PM

when compliling with gcc the default is a.out. you can do I think

Code:

gcc hello.c -o hello

and that should output your executable binary as hello. Or you can also type

Code:

mv a.out hello

and that will rename the a.out binary to what ever you specified it as.

pixellany · 04-16-2009, 10:10 PM

Quote:

Originally Posted by mq15

Thanks
When I type hyper> cat hello.c is:
hyper> cat hello.c
bash: hyper: command not found

Also I compiled hello.c as:
#gcc hello.c
this command created a.out file,now I dont know how to run this file or make any executible (i.e .exe) file.

Please help me.

What is "hyper" supposed to do? I can't find any reference to such a command......

Have you found a tutorial on compiling on Linux?

Have you gotten a book?--the one I recommended, or something else?

I did a Google search for you:
http://www.google.com/search?hl=en&r...al&btnG=Search

schneidz · 04-16-2009, 11:53 PM

hyper is the name of my machine (prompt).

you should learn other precompiled c programs (like ls, cd, mv) then you'll understand the basics of running programs then you can create your own.

Maddy_linux · 04-17-2009, 12:18 AM

Quote:

Originally Posted by schneidz

hyper is the name of my machine (prompt).

you should learn other precompiled c programs (like ls, cd, mv) then you'll understand the basics of running programs then you can create your own.

Hi,

i am a newbie to linux, and was looking in the forums and came across this which i never heard of.

Can you please explain little more on that?
So, hyper is another folder as hyper and you have script files in that folder?

hyper is another file with the script in it and has the same name as your prompt?

or is it possible to program within ur prompt as per what you said? if so how do you access your prompt?

Thanks,
Maddy

pixellany · 04-17-2009, 06:45 AM

This thread has entered the "Twilight Zone".....

schneidz posted a code sample (cut and paste from a terminal). This included the prompt that appears in any terminal---in his case, simply the HOSTNAME of his computer. Mine looks like this:

Code:

root@Ath:~#

This says I am running as root on a computer named "Ath", and I am in my home directory. This prompt can be customized by editing the PS1 environment variable.

Then the OP misread the code and thought that "hyper" was a command.

To answer Maddy---the prompt appears in a terminal and is simply the "marker" inviting you to "enter commands here". You can find a terminal in your menus, or with ctrl-alt-F1.

If OP does not come back soon, we'll close this.......

Maddy_linux · 04-18-2009, 01:13 AM

Quote:

Originally Posted by pixellany

This thread has entered the "Twilight Zone".....

schneidz posted a code sample (cut and paste from a terminal). This included the prompt that appears in any terminal---in his case, simply the HOSTNAME of his computer. Mine looks like this:

Code:

root@Ath:~#

This says I am running as root on a computer named "Ath", and I am in my home directory. This prompt can be customized by editing the PS1 environment variable.

Then the OP misread the code and thought that "hyper" was a command.

To answer Maddy---the prompt appears in a terminal and is simply the "marker" inviting you to "enter commands here". You can find a terminal in your menus, or with ctrl-alt-F1.

If OP does not come back soon, we'll close this.......

Hey thanks for the response i was confused by the previous thread when it is mentioned it can be programmed for the prompt. This answered my question and i agree

Thanks,
Maddy

schneidz · 04-19-2009, 12:35 AM

i should explain, in college, one of the labs was to create your own 'ls' program and your own 'shell'. mine happened to have a non-standard prompt so that's why my screen grab looked the way it did.

mq15 · 04-19-2009, 02:09 PM

I would also like to learn editing the prompt but first I want to about one dedicated environment for compiling and debigging my .c/.cpp files in fedora. From discussion here, I have learnt compiling with gcc command but what I want is a seperate, specialized environment like Turboc++ and Borland I used in Windows Systems by Microsoft.

Regards

mq15 · 04-19-2009, 02:13 PM

Editing the prompt is also interesting but first I would like to know about a dedicated environment for compiling and debugging my .c/.cpp files in fedora like the one I used in Windows e.g TurbooC++ and the Borland.
I have learnt compiling using gcc command at terminal but I want some separate and specialized program.
Regards