.c

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

/**
  uname implementation 
*/

int main(){
    struct utsname name;
    uname(&name);
    printf("%s %s %s %s %s\n", name.sysname, name.nodename, name.release, name.version, name.machine);
    return 0;
 }