Question

How to get OS information on Unix-like systems with C

Answer 1

#include <stdio.h>
#include <sys/utsname.h>

int main() {
    struct utsname buf;

    if (uname(&buf) == -1) {
        perror("uname");
        return 1;
    }

    printf("%s\n", buf.sysname);
    printf("%s\n", buf.nodename);
    printf("%s\n", buf.release);
    printf("%s\n", buf.version);
    printf("%s\n", buf.machine);

    return 0;
}



/*
run:

Linux
prod-repl-c-74fc9fb589-bbvqz
6.6.72+
#1 SMP PREEMPT_DYNAMIC Sun Apr 27 08:53:34 UTC 2025
x86_64

*/

 

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