Date: Thu, 28 Jan 2010 03:19:21 -0700 From: Chad Perrin <perrin@apotheon.com> To: freebsd-questions@freebsd.org Subject: Re: OT: finding every file not in a list Message-ID: <20100128101921.GA28664@guilt.hydra> In-Reply-To: <20100128101351.GA27490@guilt.hydra> References: <4B6090FC.4070002@gmail.com> <20100128101351.GA27490@guilt.hydra>
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On Thu, Jan 28, 2010 at 03:13:51AM -0700, Chad Perrin wrote:
>
> losers = Dir["#{Dir.getwd}/**/*"]
> keepers = IO.readlines ARGV.shift
> startpath = ARGV.shift
>
> if startpath
> Dir.chdir startpath
> end
Oops. Speaking of using at your own risk . . .
That line that reads `losers = Dir["#{Dir.getwd}/**/*"]` should be
*after* the conditional block. Thus, the above quoted code should look
like this instead:
keepers = IO.readlines ARGV.shift
startpath = ARGV.shift
if startpath
Dir.chdir startpath
end
losers = Dir["#{Dir.getwd}/**/*"]
. . . otherwise you might end up deleting a bunch of files in the wrong
part of the directory hierarchy if you execute the program from somewhere
other than where you want files deleted. I guess I shouldn't have gotten
fancy and tried to provide a way to execute it from anywhere in the
filesystem. Sorry about that.
--
Chad Perrin [ original content licensed OWL: http://owl.apotheon.org ]
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