read from file in c code example

Example 1: read files in c

#include<stdio.h>
int main(){
	FILE *in=fopen("name_of_file.txt","r");
	char c;
	while((c=fgetc(in))!=EOF)
		putchar(c);
	fclose(in);
	return 0;
}

Example 2: c file

#include <stdio.h>
#include <stdlib.h>

int main() {
   	printf("Hello Word!");
    return 0;
}

Example 3: file in C

//to open a file
FILE=*fp;
fp=fopen("one.txt", "w");
//to close file 
fclose(fp);

Example 4: c read file from command line

You can use as your main function:
int main(int argc, char **argv) 

So, if you entered to run your program:
C:\myprogram myfile.txt

argc will be 2
argv[0] will be myprogram
argv[1] will be myfile.txt

To read the file:
FILE *f = fopen(argv[1], "r");