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#include <errno.h>
#include <getopt.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
int
main(int argc, char *argv[])
{
int c;
int human_readable = 0;
struct stat file_data;
while((c = getopt(argc, argv, "h")) != -1) {
switch(c) {
case 'h':
human_readable = 1;
break;
}
}
if(argc == optind) {
printf("usage: du [-h] file...\n");
return 1;
}
for(int i = optind; i < argc; i++) {
if(stat(argv[i], &file_data) == -1) {
fprintf(stderr, "du: %s: %s\n", argv[i], strerror(errno));
continue;
}
if(human_readable)
printf("%liK\t %s", file_data.st_size / 1024, argv[i]);
else
printf("%li\t %s", file_data.st_size, argv[i]);
puts("");
}
return 0;
}
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