Manip.pm can't be located??

When I try to run the log_badlogins script (perl
log_badlogins) the following output appear:
_________________________________________________

[root@servauth bin]# perl log_badlogins
Can't locate Date/Manip.pm in @INC (@INC contains:
/usr/local/lib/perl5/5.8.6/i686-linux
/usr/local/lib/perl5/5.8.6
/usr/local/lib/perl5/site_perl/5.8.6/i686-linux
/usr/local/lib/perl5/site_perl/5.8.6
/usr/local/lib/perl5/site_perl .) at log_badlogins
line 15.
BEGIN failed--compilation aborted at log_badlogins
line 15.
************************************************** ******

Where is the @INC located? Manip.pm is already located
at the /Date directory. I'm sure it is there. But what
is the @INC and why its contain the path to some
directories.What should this directory contain that
make it used by the log_badlogin scripts?
Please help. thanks in advanced.
P/S-My totaccts and mtotaccts run successfully. thank
you to any help on that.








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