Function usage

src/uniq.c:151–232

};

void
usage (int status)
{
  if (status != EXIT_SUCCESS)
    emit_try_help ();
  else
    {
      printf (_("\
Usage: %s [OPTION]... [INPUT [OUTPUT]]\n\
"),
              program_name);
      fputs (_("\
Filter adjacent matching lines from INPUT (or standard input),\n\
writing to OUTPUT (or standard output).\n\
\n\
With no options, matching lines are merged to the first occurrence.\n\
"), stdout);

      emit_mandatory_arg_note ();

     oputs (_("\
  -c, --count\n\
         prefix lines by the number of occurrences\n\
"));
     oputs (_("\
  -d, --repeated\n\
         only print duplicate lines, one for each group\n\
"));
     oputs (_("\
  -D\n\
         print all duplicate lines\n\
"));
     oputs (_("\
      --all-repeated[=METHOD]\n\
         like -D, but allow separating groups with an empty line;\n\
         METHOD={none(default),prepend,separate}\n\
"));
     oputs (_("\
  -f, --skip-fields=N\n\
         avoid comparing the first N fields\n\
"));
     oputs (_("\
      --group[=METHOD]\n\
         show all items, separating groups with an empty line;\n\
         METHOD={separate(default),prepend,append,both}\n\
"));
     oputs (_("\
  -i, --ignore-case\n\
         ignore differences in case when comparing\n\
"));
     oputs (_("\
  -s, --skip-chars=N\n\
         avoid comparing the first N characters\n\
"));
     oputs (_("\
  -u, --unique\n\
         only print unique lines\n\
"));