Anybody tell me about net/ftp protocol?

Ruby
1

Dear Friends,
I am having the source code like this.
require ‘net/ftp’

ftp = Net::FTP::new(“ftp.ruby-lang.org”)
ftp.login(“anonymous”, “[email protected]”)
ftp.chdir(“/pub/ruby”)
tgz = ftp.list(“ruby-*.tar.gz”).sort.last
print "the latest version is ", tgz, “\n”
ftp.getbinaryfile(tgz, tgz)
ftp.close

while running this code It is not working properly.
as long as it is simply running,But I am not getting any result.
After pressing ctrl+c I got the error like this.
Please anybody clarify my doubts.
The error is:

/usr/lib/ruby/1.8/net/ftp.rb:211:in readline': Interrupt from /usr/lib/ruby/1.8/net/ftp.rb:211:in getline’
from /usr/lib/ruby/1.8/net/ftp.rb:221:in getmultiline' from /usr/lib/ruby/1.8/net/ftp.rb:235:in getresp’
from /usr/lib/ruby/1.8/net/ftp.rb:251:in voidresp' from /usr/lib/ruby/1.8/net/ftp.rb:176:in connect’
from /usr/lib/ruby/1.8/monitor.rb:238:in synchronize' from /usr/lib/ruby/1.8/net/ftp.rb:174:in connect’
from /usr/lib/ruby/1.8/net/ftp.rb:136:in initialize' from net.rb:3:in new’
from net.rb:3

2

On 19 Oct 2007, at 15:30, Arul hari wrote:

ftp.close
from /usr/lib/ruby/1.8/net/ftp.rb:235:in getresp' from /usr/lib/ruby/1.8/net/ftp.rb:251:in voidresp’
from /usr/lib/ruby/1.8/net/ftp.rb:176:in connect' from /usr/lib/ruby/1.8/monitor.rb:238:in synchronize’
from /usr/lib/ruby/1.8/net/ftp.rb:174:in connect' from /usr/lib/ruby/1.8/net/ftp.rb:136:in initialize’
from net.rb:3:in `new’
from net.rb:3

Posted via http://www.ruby-forum.com/.

Your code works for me, which suggests there was either a problem
with the ftp server when you tried it or there’s something wrong with
your connection/firewall. Unrelated to your problem above, you’ll
have to make a small change in your dir listing code to get it to
properly work:

require ‘net/ftp’

ftp = Net::FTP::new(“ftp.ruby-lang.org”)
ftp.login(“anonymous”, “[email protected]”)
ftp.chdir(“/pub/ruby”)
tgz = ftp.list(“ruby-*.tar.gz”).map{|l| l.split[8]}.sort.last
print "the latest version is ", tgz, “\n”
ftp.getbinaryfile(tgz, tgz)
ftp.close

Alex G.

Bioinformatics Center
Kyoto University

3

On Fri, 19 Oct 2007 16:29:59 +0900, Alex G. wrote:

Your code works for me, which suggests there was either a problem
with the ftp server when you tried it or there’s something wrong
with your connection/firewall.

Probably the OP needs to put the connection in passive mode.

/gordon