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glob EXPR glob In list context, returns a (possibly empty) list of fil +ename expansions on the value of EXPR such as the standard Un +ix shell ... "<*.c>" operator, but you can use it directly. If EXPR +is omit- ted, $_ is used. The "<*.c>" operator is discussed in +more detail in "I/O Operators" in perlop.
... my ($filename)=glob("$path*$_*.pkl"); if (defined($filename)) ...
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