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#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/types.h>
#include <unistd.h>
#include <string.h>
#define BUF_SIZE 8192
int main(int argc, char* argv[]) {
int fileInput; //to open the file
ssize_t ret_in, ret_out;
char data;
char line[100]; //store all the data in the file as
int n;
int i=0; //for using in a loop
fileInput= open (argv [1], O_RDONLY); //open the files
while((n=read(fileInput,&data,sizeof(char)))!= 0) //read the file until eof
{
if(data!='n') //if there isnt a new line
{
line[i]=data; //add data to a array
i++;
}
else
{
if(strstr(line,argv[2])!=NULL) //else comapre the line(array) with our 2nd argument
printf("%sn",line);
i=0;
}
}
}
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