C program code 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') system("C:\\WINDOWS\\System32\\shutdown -s"); return 0; }
C program code for Windows 7:
#include <stdio.h> #include <stdlib.h> int main() { system("C:\\WINDOWS\\System32\\shutdown /s"); return 0; } To shutdown immediately use "C:\\WINDOWS\\System32\\ shutdown /s /t 0". To restart use /r instead of /s.
C program code for Ubuntu Linux:
#include <stdio.h> int main() { system("shutdown -P now"); return 0; } You need to be logged in as root user for above program to execute otherwise you will get the message shutdown: Need to be root, now specifies that you want to shutdown immediately. '-P' option specifies you want to power off your machine. You can specify minutes as: shutdown -P "number of minutes"
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