geany.c

#include <stdio.h>
int main(){
 	char s[255];
 	int n;
	FILE *fp;
	fp=fopen(__FILE__,"r");
	n=0;
	while( fgets(s,255,fp) ) {
		n++;
		printf("%d %s",n,s);
	}
	fclose(fp);
	return 0;	
}