How to clear console in C?

There are several methods to clear the console or output screen and one of them is clrscr() function. It clears the screen as function invokes. It is declared in “conio.h” header file. There are some other methods too like system(“cls”) and system(“clear”) and these are declared in “stdlib.h” header file.

Here is the syntax to clear the console in C language,

clrscr();
OR
system(“cls”);
OR
system(“clear”);

Here is an example to clear the console in C language,

Let’s say we have “new.txt” file with the following content −

0,hell!o
1,hello!
2,gfdtrhtrhrt
3,demo

Now, let us see the example.

Example

#include<stdio.h>
#include<conio.h>
void main() {
   FILE *f;
   char s;
   clrscr();
   f=fopen("new.txt","r");
   while((s=fgetc(f))!=EOF) {
      printf("%c",s);
   }
   fclose(f);
   getch();
}

Output

0,hell!o
1,hello!
2,gfdtrhtrhrt
3,demo

In the above program, we have a text file “new.txt”. A file pointer is used to open and read the file. It is displaying the content of file. To clear the console, clrscr() is used.

clrscr();
f=fopen("new.txt","r");
while((s=fgetc(f))!=EOF) {
   printf("%c",s);
}