From: Robert Klemme <shortcutter@...>
Date: 2006-11-03T00:35:15+09:00
Subject: Re: remote file glob

On 02.11.2006 16:00, greg wrote:
> What is the fastest way to do a recursive file glob on a remote server?
>  Keep in mind that I want to do some filtering based on the directory
> name, file properties, and file extensions.
> (I want to copy these files, but I assume once I have the list, that
> using Net::FTP will be trivial)
> 
> I am concerned that just using ftp.chdir and ftp.list will be slow.
> Perhaps there is a faster way using Net:SSH.  I had an idea to try to
> run a ruby program on the server (ruby is installed on the remote
> server)
> cmd = "ruby -e ' #{ File.read( ruby_glob_program ) } ' "

That would rather be something like

ruby -e 'puts Dir["base/**/*.txt"]'
ruby -r find -e 'Find.find("base") {|f| puts f if /\.txt$/ =~ f }'

> Net::SSH.start(SERVER, :username => u, :password => p) do |session|
>   input, output, error = session.process.popen3( cmd )

However, if you just want to find files fast and then copy them, a 
combination of ssh, find, xargs, cp, tar,... might be more efficient.

Kind regards

	robert