=over

=item glob EXPR

=item glob

In list context, returns a (possibly empty) list of filename expansions on
the value of EXPR such as the standard Unix shell F</bin/csh> would do. In
scalar context, glob iterates through such filename expansions, returning
undef when the list is exhausted. This is the internal function
implementing the C<< <*.c> >> operator, but you can use it directly. If
EXPR is omitted, C<$_> is used.  The C<< <*.c> >> operator is discussed in
more detail in L<perlop/"I/O Operators">.

Beginning with v5.6.0, this operator is implemented using the standard
C<File::Glob> extension.  See L<File::Glob> for details.

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