ladybird/Userland/Utilities/fgrep.cpp
2021-05-23 18:10:29 +02:00

29 lines
584 B
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Assertions.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;
VERIFY(str);
}
return 0;
}