kibber.c

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

/* 101 bytes - the 102nd is the \n */
#define BYTES "This line of text has been engineered by " \
    "only the very finest, wisest squirrels to contain 102 bytes."

void usage(char *progname)
{
    fprintf(stderr, "usage: %s <number>\n", progname);
    fprintf(stderr, "Generate a number of kB of text and newlines.\n");
}

int main(int argc, char *argv[])
{
    if (argc != 2) {
        usage(argv[0]);
        exit(EXIT_FAILURE);
    }

    errno = 0;
    long kibs = strtol(argv[1], NULL, 10);
    if (errno != 0) {
        fprintf(stderr, "%s: %s is either out of range or exploded strtol\n", argv[0], argv[1]);
        usage(argv[0]);
        exit(EXIT_FAILURE);
    }

    for(long int i=0; i<kibs; i++) {
        for (int j=0; j<10; j++) {
            printf("%s\n", BYTES);
        }
        printf("KiB\n");
    }

}

kibber.go

package main

import (
	"bufio"
	"fmt"
	"io"
	"log"
	"os"
	"strconv"
)

var bytes = []byte("This line of text has been engineered by " +
	"only the very finest, wisest squirrels to contain 102 bytes.\n")

var kibstr = []byte("KiB\n")

func kib(w io.Writer) {
	for i := 0; i < 10; i++ {
		w.Write(bytes)
	}
	w.Write(kibstr)
}

func main() {
	if len(os.Args) != 2 {
		fmt.Fprintf(os.Stderr, "usage: %s <number>\n", os.Args[0])
		os.Exit(1)
	}
	kibs, err := strconv.Atoi(os.Args[1])
	if err != nil {
		log.Fatalf("%s: %s isn't a number of KiB I can cope with", os.Args[0], os.Args[1])
	}
	writer := bufio.NewWriter(os.Stdout)
	defer writer.Flush()
	for i := 0; i < kibs; i++ {
		kib(writer)
	}
}