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Could someone explain why touch program is 47 Kbytes size? Just checked my Ubuntu machine to confirm this.

• mkopinsky 15y ago
  Probably because it's statically linked with some standard libraries. If you write a hello world app in C++ and compile/link with all the defaults, you'll see similar results.
  • deleted 15y ago
    [deleted]
  • beza1e1 15y ago
    It is not. It even dynamically links to libpthread ...
• tedunangst 15y ago
  You should use OpenBSD, then it's only 10k. As for why, objdump -s gives some hints. Lots of the file is really just zeros (you can see this with hexdump too), and the various sections of the file are padded for alignment.
• pdw 15y ago
  I think you can blame the GNU `--date` option. It supports many, many possible input formats (http://www.gnu.org/s/coreutils/manual/html_node/Date-input-formats.html http://www.gnu.org/s/coreutils/manual/html_node/Date-input-f...) and the implementation has to be quite complex.