Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.ruby > #2398

Windows 2008 Server: Reading Text File with Ruby.

Show all headers | View raw

Hello -
New Ruby user here.
I was wondering if you could point me in the right direction:

- I save the output of a WMIC query to a temp text file on Windows 2008
using Ruby:

system("wmic MEMORYCHIP get CAPACITY /VALUE > tmp")

- Next, I try to read this file back in order to extract a value from
the output:

contents = File.open('tmp', 'r:') { |f| f.read }

However, when I run this in irb, the file is imported with the following
leading characters: \x00 and others.  If I open the actual tmp file in
Windows, it displays the correct text.

Is there a way to just import that text only? Is this something to do
with encoding?

Thank you for your help.

Here is the entire session in irb:

irb(main):002:0> system("wmic MEMORYCHIP get CAPACITY /VALUE >
tmp")
=> true
irb(main):003:0> contents = File.open('tmp', 'r:') { |f| f.read }
=>
"\xFF\xFE\n\x00\n\x00N\x00o\x00d\x00e\x00,\x00C\x00a\x00p\x00a\x00c\x00i\x00t
\x00y\x00\n\x00\n\x00P\x00S\x00,\x008\x005\x008\x009\x009\x003\x004\x005\x009\x0
02\x00"
irb(main):004:0>

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

Back to comp.lang.ruby | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Windows 2008 Server: Reading Text File with Ruby. Angelo NN <storm8000@gmail.com> - 2011-04-06 14:30 -0500
  Re: Windows 2008 Server: Reading Text File with Ruby. Jonathan Hudson <jh_ruby-lang@daria.co.uk> - 2011-04-06 14:33 -0500
    Re: Windows 2008 Server: Reading Text File with Ruby. Angelo NN <storm8000@gmail.com> - 2011-04-06 14:35 -0500
      Re: Windows 2008 Server: Reading Text File with Ruby. Jonathan Hudson <jh_ruby-lang@daria.co.uk> - 2011-04-06 14:47 -0500
        Re: Windows 2008 Server: Reading Text File with Ruby. Angelo NN <storm8000@gmail.com> - 2011-04-06 14:58 -0500
          Re: Windows 2008 Server: Reading Text File with Ruby. Jonathan Hudson <jh_ruby-lang@daria.co.uk> - 2011-04-06 15:12 -0500
            Re: Windows 2008 Server: Reading Text File with Ruby. Angelo NN <storm8000@gmail.com> - 2011-04-06 15:15 -0500
          Re: Windows 2008 Server: Reading Text File with Ruby. "F. Senault" <fred@lacave.net> - 2011-04-06 22:45 +0200

csiph-web