Re: Why complicated directory structure in Linux

Rockinghorse Winner <ny6p@xxxxxxxxx> writes:

mydejamail@xxxxxxxxxxx wrote:

Why is Linux directory structure laid out so, what is the rationale

such as

/bin

/usr/bin

/usr/local/bin

/sbin

/usr/sbin

/usr/local/sbin

and likewise for lib, share, libexec etc directories


Once upon a time, far far away, in a distant galaxy, the fathers (they
of blessed memory) of Unix found great comfort and insight in the
$Home/usr/bin, /sbin and /local/sbin directory structure, and over the
years many have recognized in it a truly insightful kind of mystical
*rightness* that cannot be explained, that cannot be rationalized. You
must simply accept and you will learn the secret soon enough. Now shut
up and lie down.

/bin,/lib,/sbin are for programs that are needed during bootup and must be
in the / directory which is mounted on bootup.
They are few in number so taht the / directory can be kept small if desired
for special boot situations.

sbin used to differ from bin in having statically liked
binaries (ie binaries which did not even need /lib) but now is for system
binaries-- ie binaries needed by root but should not be available to
users.
/usr/{bin,lib,sbin} are for the vast majority of binaries
/usr/local is for locally installed programs which are not part of the
system but have been installed by the local people for their own use.
Some systems use the /opt directory tree for that same purpose.

If you want to put eveything into /bin, you may. Most distros do not.
iMost distros find dividing things up in the usual way has its advantages.





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