C program to shut down or turn off computer

In this tutorial you will learn about the C program to shut down or turn off computer and its application with practical example.

In this tutorial, we will learn to create a C program that will shut down or turn off the computer using C programming.

Table Of Contents−

C program to shut down or turn off computer

Shut down or Turn off computer

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.

Basic Input and Output function in C Programming.
Basic C programming.
Header Libraries and its usage.

Shut down or Turn off computer

In c programming it is possible shut down or turn off with the help of very small amount of code . The C language has many types of header libraries which has supported function in them with the help of these files the programming is easy.

Shutting Pc with the help of c program is so easy.

Algorithm:-

1. Include stdlib.h
2. Call the System Function
3. Execute the Program.

1. Include stdlib.h

2. Call the System Function

3. Execute the Program.

Program to shut down or turn off the computer :-

Program For Windows 7:-

#include <stdio.h>
#include <stdlib.h>
  
int main()
{
 // this function will shut the pc 
  system("c:\\windows\\system32\\shutdown /s");
  return 0;
}

#include <stdio.h>

#include <stdlib.h>

int main()

{

// this function will shut the pc

system("c:\\windows\\system32\\shutdown /s");

return 0;

}

Note to shutdown immediately use “C:\\WINDOWS\\System32\\shutdown -s -t 0”. To restart use “-r” instead of “-s”.

Here, “shutdown /s /t x”; where x is the number of seconds after which shutdown will occur.

Program For Windows xp:-

#include <stdio.h>
#include <stdlib.h>
int main()
{
   char ch;

   printf("Do you want to shutdown your computer now (y/n)\n");
   scanf("%c", &ch);

   if (ch == 'y' || ch == 'Y')
      // this function will shut the pc 
      system("C:\\WINDOWS\\System32\\shutdown -s");

   return 0;
}

#include <stdio.h>

#include <stdlib.h>

int main()

{

char ch;

printf("Do you want to shutdown your computer now (y/n)\n");

scanf("%c", &ch);

if (ch == 'y' || ch == 'Y')

// this function will shut the pc

system("C:\\WINDOWS\\System32\\shutdown -s");

return 0;

}

Note to shutdown immediately use “C:\\WINDOWS\\System32\\shutdown -s -t 0”. To restart use “-r” instead of “-s”.

Here, “shutdown /s /t x”; where x is the number of seconds after which shutdown will occur.

Program for Ubuntu:-

#include <stdio.h>
int main() {
  // this function will shut the pc
 // linux os command for the shutting down of the pc
  system("shutdown -P now");
  return 0;
}

#include <stdio.h>

int main() {

// this function will shut the pc

// linux os command for the shutting down of the pc

system("shutdown -P now");

return 0;

}

Output:-

The program we have to first include stdlib.h and then we call the system function.

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C program to shut down or turn off computer