Someone

 /*test.c*/

#include <unistd.h>

 

int main(int argc, char *argv[])

{

char buff[100];

/*if no argument…*/

if(argc <2)

{
   printf("Syntax: %s <input string>\n", argv[0]);
   exit (0);
        }
  strcpy(buff, argv[1]);
  return 0;

}