# Program to search text in a file

## Algorithm

Let's first see what should be the step-by-step procedure to compare two integers−

```START

Step 1 → Take two integer variables, say A & B

Step 2 → Assign values to variables

Step 3 → Compare variables if A is greater than B

Step 4 → If true print A is greater than B

Step 5 → If false print A is not greater than B

STOP
```

## Flow Diagram

We can draw a flow diagram for this program as given below −

## Pseudocode

Let's now see the pseudocode of this algorithm −

```procedure compare(A, B)

IF A is greater than B
DISPLAY "A is greater than B"
ELSE
DISPLAY "A is not greater than B"
END IF

end procedure
```

## Implementation

Assuming we have file with name file_search.txt with this content −

```Tutorials Point originated from the idea that there exists a class of readers who
respond better to online content and prefer to learn new skills at their own pace
from the comforts of their drawing rooms.
```

Now, we shall see the actual implementation of the program −

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

int main()
{
FILE *fp;
char word[50];
char ch;
char *filename = "somefile.txt";
char *search = "to";
int flag = 0;

/*  open for writing */
fp = fopen(filename, "r");

do
{
ch = fscanf(fp, "%s", word);
if(strcmp(word, search) == 0)
flag = 1;
} while (ch != EOF);

if(flag)
printf("'%s' found in %s\n", search, filename);
else

fclose(fp);
return 0;
}
```

## Output

Output of this program should be −

```'to' appears 2 times in somefile.txt
```