commands/yes/yes.c

   1 /*      yes 1.4 - print 'y' or argv[1] continuously.    Author: Kees J. Bot
   2  *                                                              15 Apr 1989
   3  */
   4 #include <sys/types.h>
   5 #include <stdlib.h>
   6 #include <string.h>
   7 #include <unistd.h>
   8
   9 int main(int argc, char **argv)
  10 {
  11         char *yes;
  12         static char y[] = "y";
  13         int n;
  14
  15         yes= argc == 1 ? y : argv[1];
  16
  17         n= strlen(yes);
  18
  19         yes[n++]= '\n';
  20
  21         while (write(1, yes, n) != -1) {}
  22         exit(1);
  23 }