From: Li Chen <chen_li3@...>
Date: 2006-10-21T05:09:14+09:00
Subject: Re: how to calculate file number in  a folder


> 
> Here's one way. (There are many, I'm sure.)
> 
> #Find all the entries in a directory
> irb(main):009:0> Dir[ 'c:/ruby/*' ]
> 
> # Find select just the ones that are files:
> irb(main):010:0> Dir[ 'c:/ruby/*' ].select{ |path| File.file?( path ) }

> 
> # Find the length of that list
> irb(main):011:0> Dir[ 'c:/ruby/*' ].select{ |path| File.file?( path )
> }.length
> => 8
> 
> 
> One other way:
> 
> file_count = 0
> Dir[ 'c:/ruby/*' ].each{ |path|
>   if File.file?( path )
>     # Do something to the file
>     file_count += 1
>   end
> }


Thank you,

Li

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