glob
See the current Perl documentation for glob.
Here is our local, out-dated (pre-5.6) version:
glob - expand filenames using wildcards
glob EXPR
glob
Returns the value of
EXPR with filename expansions such as the standard
Unix shell /bin/sh would do. This is the internal function implementing the <*.c>
operator, but you can use it directly. If
EXPR is omitted, $_ is used. The <*.c> operator is discussed in more detail in
I/O Operators.