How to verify a type of file exists in a directory?

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

Before a processing, I need to verify the output directory doesn't contain old results. How can I determine if a type of file (i.e. *.fa or *.log) exists in a directory?

Comment on How to verify a type of file exists in a directory?

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Re: How to verify a type of file exists in a directory? by davidrw (Prior) on Aug 26, 2005 at 17:33 UTC
`perldoc -f glob` (or `opendir`/`readdir`) and `perldoc -f -X` should get you to a good start. I'm sure solutions could be constructed with File::Find (or File::Find::Rule) as well.	[reply] [d/l] [select]
Re: How to verify a type of file exists in a directory? by brian_d_foy (Abbot) on Aug 26, 2005 at 20:45 UTC
If you are dealing with one directory and not descending into subdirectories, you can use a glob. If you get files back from the glob, then you know they exist. `my @files = glob( ".fa .log" );` [download] Note: In this example the current directory has to be the output directory, but you could also use paths in the glob. -- brian d foy <brian@stonehenge.com> Subscribe to The Perl Review	[reply] [d/l]