Creating a Directory and read/write to file in Directory in C++

I will explain how to create a directory in linux using a c++ program.

The program to create a directory is as follows:

Code:

#include<iostream.h>
#include<sys/stat.h>
#include<sys/types.h>
using namespace std;

main()
{

	if(mkdir("pathname",0777)==-1)//creating a directory
	{
		cerr<<"Error :  "<<strerror(errno)<<endl;
		exit(1);
	}

}

This program will create a directory.

The function mkdir() will create the directory.

To know about mkdir() function do man 2 mkdir in the command window.

To use the function mkdir u have to include these header files
i.e
<sys/stat.h>
<sys/types.h>

Now i will show the program which will create the directory and then creates a file in the directory and performs read/write operations.

The Program is as follows:

Code:

#include<iostream.h>
#include<sys/stat.h>
#include<sys/types.h>
#include<fstream.h>
using namespace std;

main()
{
	if(mkdir("pathname",0777)==-1)//creating a directory
	{
		cerr<<"Error :  "<<strerror(errno)<<endl;
		exit(1);
	}
	else
	{
		ofstream write ("pathname/file.txt");//writing to a file
		if (write.is_open())
		{
			write << "This is a line."<<endl;
			write << "This is another line."<<endl;
			write.close();
		}
		else
			cout << "Unable to open file";
	}

	string line;

	ifstream read ("pathname/file.txt");//reading a file
	if (read.is_open())
	{

		while (! read.eof() )
		{
			getline (read,line);
			cout<<line<<endl;
		}
		read.close();
	}
	else 
		cout << "Unable to open file";
}

I have compiled these programs in Linux not in other os.

 

good info

 

good one

 

nice

 

Well I have a problem guys...and I would like to know if you can help....is for Borland C/C++ not for linux, but I guess it is the same....
I`m in one directory EX: C://prog/test/ and there is a file "nr.in" How can I copy that file in to C://prog/ ?

Thanks for your help guys.

 

See u can't copy the file nr.in from C://prog/test/ to C://prog/.

U can copy some file from C://prog/ to C://prog/test/.

 

i tried your code good one

 

tried nice code

 

good !

 

nice code

 

that is good code

 

I am getting error
error C2065: 'mkdir' : undeclared identifier

Please help me out.

 

nice one...

 

Hello dear please help me on following topic:
How to get X and Y position of given character from screen in C.
e.g.

If HELLO is located at gotoxy(5,5) then when we check for H it will return x=5 and y=5.

and

assume Y is located on screen then
when we pass Y in argument it will return the x and y position of Y's location from screen.
Please help me.