sh bug?

[Walter Belgers]

Julian Elischer wrote:
> 
> however  echo $$
> and
>   ( echo $$ )

echo is a shell builting (same with ps).
Apparantly, sh is smart in recognising you are running sh/ps.

$ echo $$
11808
$ (echo $$)
11808
$ cat x
#!/bin/sh
echo $$
$ (./x)
11812

Walter.
-- 
Walter Belgers
walter at belgers.com       Get some clue! http://www.ENOCLUE.nl/