Necessary code or trash?
matthew at starbreaker.net
Thu Aug 28 14:31:09 PDT 2003
On 00:52 Tue 29 Aug , Denis Troshin wrote:
> I have FreeBSD 5.0-RELEASE.
> Why most of bin (sbin) utilities are so big.
> For example,
> rm - 410 268 bytes,
> mv - 407 568 bytes,
> date - 423 748 bytes.
> Do they really contain only necessary code or
> have more than a half of trash?
As others explained these commands and others are statically linked so that
they do not depend on libraries that live in /usr. Since these are very
basic commands, it's a bad idea to have them depend on a library that might
not be available if only the / filesystem is mounted.
Since / usually just contains /root, /bin, /sbin and a couple of others,
statically linked programs in /bin and /sbin are always available, even
in single user mode. Booting into single user only mounts /bin, which is why
some people on the list have advised sticking with /bin/sh when asked about
changing root's login shell.
Hope this helps.
"The best way to lose an argument is to throw the first punch."
More information about the freebsd-questions