Reading a file from Terminal (obj-c)

I need to make a little program that reads a file name from command line which then opens a textfile and then read what's in the textfile before printing the contents back into the terminal window. I've done the program in C, I'm just extremely new with objective-c

Code:

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

int main(int argc, char * argv[]) {
	FILE *file;
	char c[300];	
	int n;

	char * filename = argv[1];
	file = fopen(filename, "r");

	if(file==NULL) {		                 // check if it is possible to open the filename
		printf("Error: can't open file.\n");
		return 1;
	} else {
		printf("\nFile opened successfully.\n");
    
		n = fread(c, 1, sizeof(c), file);	// passing a char array, reading size of given array and 
							// passing it through the appropiate number of times
							
		c[n] = '\0';				// a char array is only a string if it has 
							// the null character at the end 
		printf("%s\n", c);			// print out the string
		printf("Characters read: %d\n\n", n);	// just print the amount of characters passed 

		fclose(file);				// to close the file
						
		return 0;
	}
}

Any help would be greatly appreciated.

 

NSString has a convenience method for reading the contents of a file in to a string.

Code:

NSString *str = [NSString stringWithContentsOfFile: @"/path/to/file"];
NSLog(@"%@", str);

NSLog is Objective-C's printf (Except it also prints a timestamp). In addition to C place holders, %@ is for NSString.

Path MUST be a of type NSString. If you're passing parameters from C's argv, you'll need to cast them to NSString. Fortunately, there's a convenience method for that too.

Code:

NSString *path = [NSString stringWithCString: argv[1]];