fputc() and fgetc()

Writing File : fputc() function

the fputc() function is used to write a single character into file. It outputs a character to a stream.
Syntax:
int fputc(int c, FILE *stream)
Example: 
#include <stdio.h>  
main(){  
FILE *fp;  
fp = fopen("file2.txt", "w"); //opening file  
fputc('b',fp);  //writing single character into file  
fclose(fp);  //closing file  
  }
file2.txt
b

Reading File : fgetc() function

The fgetc() function returns a single character from the file. It gets a character from the stream. It returns EOF at the end of file.
Syntax:
int fgetc(FILE *stream)
Example: 
#include <stdio.h>  
void main() {  
FILE *fp;  
char c;  
fp=fopen("myfile.txt","r");  
while((c=fgetc(fp))!=EOF) {  
printf("%c",c);  
 }  
fclose(fp);   
 }  
myfile.txt
this one is general text message

fputs() and fgets()

The fputs() and fgets() in C programming are used to write and read string from stream. Let's see examples of writing and reading file using fgets() and fgets() functions

Writing File : fputs() function

The fputs() function writes a line of characters into file. It outputs string to a stream.
Syntax:
int fputs(const char *s, FILE *stream)
Example: 
#include <stdio.h>  
void main()  {  
FILE *fp;  
fp=fopen("myfile3.txt","w");  
fputs("hello c language",fp);  
fclose(fp);    
 }  
myfile3.txt
hello c language

Reading File : fgets() function

The fgets() function reads a line of characters from file. It gets string from a stream.
Syntax:
char* fgets(char *s, int n, FILE *stream)
Example: 
#include <stdio.h> 
void main() {  
FILE *fp;  
char text[400]; 
fp=fopen("myfile3.txt","r");  
printf("%s",fgets(text,300,fp));  
fclose(fp);    
 }
Output:
hello c language