Options:
  -f, --format <ABCF>       select output style
  -r, --radix <ODX>         display numbers in octal, decimal or hex
  -t, --totals              display total size (berkeley only)
  -D, --demangle            demangle function name (-fF only)
      --src-file            display source file name (-fF only)
      --sort <N>            sort column. N is 0,1,2,3. (-fF only)

  -H, --help     display this help and exit
  -V, --version  output version information and exit