These library commands wrap corresponding system calls: library system fopen open fputs, fprintf write fscanf, getline read fclose close

    #include <stdio.h>
    int main(){
     FILE *in = fopen("names.text", "r");  // It opens the file
     char c;
     while((c = fgetc(in)) != EOF){  // till it reaches the end of the file, it will keep on reading the next character
      printf("%c", c);   // displays the file
     } 
     fclose(in);     // close the file 
     
     return 0; 
    }