[Israel.pm] Removing PERLLIB additions to @INC
oron at actcom.co.il
Wed Jan 14 09:42:31 PST 2004
On Wednesday 14 January 2004 15:55, Yuval Kogman wrote:
> If at some point you need to have a script without tainting perhaps
> something resemblant of
> #!/bin/sh -c 'unset PERL5LIB; unset PERLLIB; /usr/bin/perl $@'
> (untested) may be useful.
It shouldn't work on any Unix/Linux. The sharp-bang syntax accept
a maximum of *single* argument (in your case it is the '-c').
This isn't a bug. It is needed to prevent an interesting security hole
(if arbitrary number of arguments were accepted) [... find the hole :-]
It means that something like:
#! /bin/sh -ri
Will work, while:
#! /bin/sh -r -i
Would run with the '-r' flag only.
Another issue is that some very old Unices (e.g: Sunos-4.x) sliently
truncated the string to 32 chars.
Oron Peled Voice/Fax: +972-4-8228492
oron at actcom.co.il http://www.actcom.co.il/~oron
He who sacrifices functionality for ease of use
Loses both and deserves neither
More information about the Perl