Now I am running FC5.
I tried to rerun one of my old programs on the shell.
The name of the program is 'Scripting6.cpp'.
-----------------------------------------------------------------------------------
#include <iostream>
#include <cstring>
using namespace std;

int main()
{
cout << "prints N times the message you want" << endl;
int count=0;
cout << "How much times do you want to write it?" << endl;
cin >> count;
cout << "What do you want to write?" << endl;
char what[10];
cin >> what;
for (int i=0; i<=count; ++i)
{
cout << what << endl;
}
return 0;
}
--------------------------------------------------------------------------------------

[root@c83-250-99-43 Shell Scripting]# chmod 755 Scripting6.cpp
[root@c83-250-99-43 Shell Scripting]# ./Scripting6.cpp
./Scripting6.cpp: line 7: using: command not found
./Scripting6.cpp: line 9: syntax error near unexpected token `('
./Scripting6.cpp: line 9: ` int main()'
[root@c83-250-99-43 Shell Scripting]#

What is the problem? I can't fathom out the meaning of 'command not found', 'syntax error' and 'int main'.

Are you for real? Scripting6.cpp? That is C++ code not some scripting language. C++ programs are compiled to binaries to be run. Use g++ for that on linux.

Thanks Hivemind

Use g++ for that on linux.
How do I do this?

I would like to point out that program is both badly written and unsafe to run.

-ciao

I renamed the program to 'g++ Scripting.cpp'.

[root@c83-250-99-43 Shell Scripting]# chmod 755 'g++ Scripting6.cpp'
[root@c83-250-99-43 Shell Scripting]#


[root@c83-250-99-43 Shell Scripting]# ./'g++ Scripting6.cpp'
./g++ Scripting6.cpp: line 7: using: command not found
./g++ Scripting6.cpp: line 9: syntax error near unexpected token `('
./g++ Scripting6.cpp: line 9: ` int main()'
[root@c83-250-99-43 Shell Scripting]#

[ Still it refuses to run? What is the problem?]

You need to compile the program using g++ first. Then run the compiled program, if it compiles.

If you want to write a script instead, then learn to write bash programs instead.
http://www.tldp.org/LDP/abs/abs-guide.pdf

If you want to learn C or C++, pick up one of many books on learning C or C++. Be sure not to skip the first couple chapters that explain the process.

Thanks for the comments
How do I compile this program on Linux?

In Windows, you install a C++ program like Borland or Bloodshed Dev C++.
First I write the program, then I compile it. I don't run Windows nowadays.

How do I do it here?

The command to compile is the one given by cyber-worx above. You must have the package gcc-c++ installed. BTW I agree with cyber-worx that the code is badly written and can produce unpredictable results. Good luck!

Thanks colucix for the comments.

I think I have gcc installed.
---------------------------------------------------------------------------------------------
[Nissanka@c83-250-99-43 ~]$ gcc --version
gcc (GCC) 4.1.1 20060525 (Red Hat 4.1.1-1)
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[Nissanka@c83-250-99-43 ~]$
------------------------------------------------------------------------------------------------------

Why didn't it compile? I am not good at debugging.

The single quotes around the line make it a single command to the shell.
Don't precede it with "./" because g++ isn't in your current directory.
You should indicate your output file. Otherwise it will be called a.out.

[root@c83-250-99-43 Shell Scripting]# ./'g++ Scripting6.cpp'
./g++ Scripting6.cpp: line 7: using: command not found
./g++ Scripting6.cpp: line 9: syntax error near unexpected token `('
./g++ Scripting6.cpp: line 9: ` int main()'


[root@c83-250-99-43 Shell Scripting]# /'g++ Scripting6.cpp'
bash: /g++ Scripting6.cpp: No such file or directory
[root@c83-250-99-43 Shell Scripting]#


[root@c83-250-99-43 Shell Scripting]# 'g++ Scripting6.cpp'
bash: g++ Scripting6.cpp: command not found
[root@c83-250-99-43 Shell Scripting]#

[Why didn't this work?]

Please, don't go further and type simply this...

if you don't get any error you should have a file called a.out which is the executable. Execute it by typing

[root@c83-250-99-43 Shell Scripting]# g++ Scripting6.cpp
bash: g++: command not found
[root@c83-250-99-43 Shell Scripting]#


[root@c83-250-99-43 Shell Scripting]# g++ Scripting6.cpp
bash: g++: command not found
[root@c83-250-99-43 Shell Scripting]#


[root@c83-250-99-43 Shell Scripting]# g++Scripting6.cpp
bash: g++Scripting6.cpp: command not found
[root@c83-250-99-43 Shell Scripting]#

[What is the problem?]

You have to install the gcc-c++ package. It provides g++.

BASH is probably giving you the answer itself: g++ is not installed. You could try which g++ (which will return the path to the program if it's found), or searching for a program file with this name, but it is quite likely that you will need to install it if you wish to be able to compile c++ programs.

For further info, look at article on compilers at Wikipedia.

Rob