Anyone have any clever, VERY reliable tricks for detecting if the
current shell is bash? The obvious way is '[ -n "$BASH" ]', but in the
interest of catching idiots that set BASH to get around such a check, I
came up with:
[ "`BASH_SUBSHELL=975 ; ( echo $BASH_SUBSHELL )`" -eq 976 ]
(975 is of course an arbitrary number.)
Anyone think they know a better way (or a reason the above might not
work)? I'm guessing it can still be circumvented*, but one would have to
be specifically making an effort to do so.
(* Actually, I'm not 100% certain it can; you have to be able to run a
script upon sub-shell startup. I'm assuming that can be done, but maybe
I'm wrong...)
--
Matthew
KDE: Desktop Excellence
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