$ PERL5LIB="--->HERE<---" perl -le'print "@INC\n"'
--->HERE<--- /usr/lib/perl5/5.8.0/i386-linux /usr/lib/perl5/5.8.0 /usr/lib/perl5/site_perl/5.8.0/i386-linux /usr/lib/perl5/site_perl/5.8.0 /usr/lib/perl5/site_perl .