C Program to Shutdown Linux OS

C Program to Shutdown Linux OS

In this program :

• You need to be logged in as user for above program to execute otherwise you will get the message shutdown: “Need to be root”.
• '-P' option specifies you want to power off your machine.
• You can specify minutes as: shutdown -P "number of minutes"

Let see the below program

#include<stdio.h>
#include<stdlib.h>    // to use system() function

int main()
{
    printf("\n\n\t\tEduguru C Program to Shutdown Linux OS\n\n\n");

    char ch;

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

    if(ch == 'y' || ch == 'Y')
    system("shutdown -P now");
    return 0;
}