[cs631apue] about ls-C

[Jan Schaumann]

jli51 <jli51 at stevens.edu> wrote:
> '-C' as the default,so is that means ls -C is an illegal option?

No, an option being the default does not mean that that option is
illegal.  It means that unless a conflicting option is specified, this
will be the default behaviour.

That is,

ls

and

ls -C

would be the same, just as if you do not implement '-C', the following
two would be the same

ls
ls -1

> can your tell me some ways to get the BLOCKSIZE of the environment?

See lecture 05.

-Jan