#include<stdio.h>
#include<string.h>

#define  MAXLINE  1000

int getline(char line[], int lim);

int main(int argc, char *argv[])
{
  char line[MAXLINE];
  int found =0;

  if (argc != 2)
    printf("Usage: $.\\find pattern\n");
  else
    while (getline(line, MAXLINE) > 0)
     if (strstr(line, argv[1]) != NULL)
      {
        printf("%s", line);
        found++;
      }

 return found;
}

int getline(char s[], int lim)
{
  int c, i;
  i=0;
  while(--lim > 0 && (c=getchar()) != EOF && c!='\n')
    s[i++]=c;
  if(c=='\n')
   s[i++]=c;
  s[i]='\0';
 return i;
}