ladybird/Userland/fgrep.cpp
2019-06-07 11:49:31 +02:00

22 lines
460 B
C++

#include <assert.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
int main(int argc, char** argv)
{
if (argc < 2) {
printf("usage: fgrep <str>\n");
return 0;
}
for (;;) {
char buf[4096];
auto* str = fgets(buf, sizeof(buf), stdin);
if (str && strstr(str, argv[1]))
write(1, buf, strlen(buf));
if (feof(stdin))
return 0;
ASSERT(str);
}
return 0;
}