likegrep#
likegrep.c
/* Ex5.6 */
#include<stdio.h>
#include<string.h>
#define MAXLINE 1000
int getline(char *line,int max);
/* find: prints lines that match the pattern from the 1st argument */
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;
char *t=s;
while(--lim > 0 && (c=getchar())!=EOF && c!='\n')
*s++=c;
if(c=='\n')
*s++=c;
*s='\0';
return s-t;
}