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C program to create a directory using system() function

Here, we are going to learn how to create a directory using system() function using C program?
Submitted by Nidhi, on August 14, 2021

Problem statement

Input the name (path) of the directory, and then create the directory using the system() function.

Creating a directory using system() function

The system() function is a library function of <stdlib.h> or <cstdlib> header file which is used to execute the commands that can be executed in the command processor or the terminal of the operating system, and finally returns the command after it has been completed.

Syntax

int system(const char *string);

The argument string is the command to be executed.

To create the directory at given path, we create the command and then pass it into system() function.

C program to create a directory using system() function

The source code to create a directory using system() function is given below. The given program is compiled and executed using GCC compile on UBUNTU 18.04 OS successfully.

// C program to create a directory
// using system() function

#include <stdio.h>
#include <stdlib.h>

int main()
{
    char dirName[16];
    char cmd[32] = { 0 };

    int ret = 0;

    printf("Enter directory name: ");
    scanf("%s", dirName);

    sprintf(cmd, "mkdir %s", dirName);

    ret = system(cmd);

    if (ret == 0)
        printf("Directory created successfully\n");
    else
        printf("Unable to create directory %s\n", dirName);

    return 0;
}

Output

Enter directory name: newDir
Directory created successfully

Explanation

Here, we created a character array dirName. Then we read the name of the directory from the user. Then we created the given directory using system() function and printed the appropriate message on the console screen.

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