Michael Mansour wrote:
Hi,
I have a couple of perl modules of the same name installed in my OS. This is
expected as I've hand compiled various apps.
What I'd like to know is, how I'd determine which perl module is actually used?
As an example, I have the Base64.pm in three locations - please don't ask why
:), and when I run:
# perl -MMIME::Base64 -e '{print "$MIME::Base64::VERSION\n"}'
3.07
Yet I do not know which one it's picking up, as I have one from Sep 20 2004,
another from Nov 30 2005 and another from this year Jun 15 01:35.
I know perl searches through paths in its environment (not sure where it gets
that from), but any ideas how I can find out which Base64.pm is being used?
Plan the first:
To each of then,
chmod 000
then (as not-root) confirm the above doesn't work.
Restore one to previous permissions, repeat test until it works.
Plan the second
strace -f -o /tmp/trace \
perl -MMIME::Base64 -e '{print "$MIME::Base64::VERSION\n"}'
fgrep Base64.pm /tmp/trace
Finally, discuss with your suppliers asking why the package their
software this way, instead of saying "it requires example.pm, available
from CPAN, and included in all the best distros."
--
Cheers
John
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