> $ cat < abcfile xyzfile
> This is the contents of xyzfile
> $
>
> If anyone has an answer to this, tell us!
Try tracing it.
> We can use a very important trick to find out: set -x
> ---- --------- -----
What shells does that work with? UX, I know, but BASH?
> $ set -x
> $
>
> $ cat < abcfile xyzfile
> + cat xyzfile
> + 0< abcfile
> xyz
> $
"0<"?
> $ set -x
> $ echo < xyzfile
> + echo
> + 0< xyzfile
>
> $
"0<"?
> $ echo x > /dev/null
> + echo x
> + 1> /dev/null
> $
"1>"?
I've seen 2> before for redirecting STDERR. So, these streams have
numbers... I know that 2 is for STDERR, and I can see (from the above
example) that 1 is for STDOUT. 0? Nowhere? The bit bucket?
