Hello!

> Unfortunatelly which is not portable.  I don't know is it documented in
> unrar to return 7 if it was called without arguments, or this is some
> random value dependent on compiler, architecture and temperature.

However, if unrar is missing, the error code is always the same (130 if I
remember correctly) under every shell, so you can test it.

You can also find a simplified PATH search in shell in the "bootstrap" script in
CVS automake.

-- 
Regards,
Pavel Roskin
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