hi all,
i need to grep a word count from a text file and i want to display the
count.
i need all the above in a rake file , i tried it by using
today_count= system("grep -R ''time'' oct_10.txt | grep
-R ''hi'' | wc
-l")
puts "today count is :#{today_count}"
but today_count returns ''true'' instead of count.
plz reply ASAP.
Thanks..
--vamsi.
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On Nov 20, 8:06 am, Vamsi Krishna <rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:> hi all, > > i need to grep a word count from a text file and i want to display the > count. > i need all the above in a rake file , i tried it by using > > today_count= system("grep -R ''time'' oct_10.txt | grep -R ''hi'' | wc > -l") > puts "today count is :#{today_count}" > > but today_count returns ''true'' instead of count. > > plz reply ASAP. > > Thanks.. > --vamsi. > -- > Posted viahttp://www.ruby-forum.com/.Try backticks instead: output = `grep -R ''time'' oct_10.txt | grep -R ''hi'' | wc` backticks will return whatever went to stdout. For system(), rtfm: http://ruby-doc.org/core/ Jeff p.s. Please don''t say "reply ASAP" when posting. Everyone here is donating their free time and energy already. :-) purpleworkshops.com --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Vamsi Krishna wrote:> hi all, > > i need to grep a word count from a text file and i want to display the > count. > i need all the above in a rake file , i tried it by using > > today_count= system("grep -R ''time'' oct_10.txt | grep -R ''hi'' | wc > -l") > puts "today count is :#{today_count}" > > but today_count returns ''true'' instead of count. > > > plz reply ASAP. > > > Thanks.. > --vamsi.Vamsi, I think here you using ''time'' is a variable, instead of using that variable try to append that var by using ''<<'' --nan -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
How can I unsubscribe this?
Judy> Date: Fri, 21 Nov 2008 10:45:33 +0100> From:
rails-mailing-list@andreas-s.net> To:
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> Subject: [Rails]
Re: how to run linux command in rake file> > > Vamsi Krishna wrote:>
> hi all,> > > > i need to grep a word count from a text file and
i want to display the> > count.> > i need all the above in a rake
file , i tried it by using> > > > today_count= system("grep -R
''time'' oct_10.txt | grep -R ''hi'' | wc>
> -l")> > puts "today count is :#{today_count}"> >
> > but today_count returns ''true'' instead of count.>
> > > > > plz reply ASAP.> > > > > >
Thanks..> > --vamsi.> > > Vamsi,> I think here you using
''time'' is a variable, instead of using that > variable try
to append that var by using ''<<''> > --nan> >
> -- > Posted via http://www.ruby-forum.com/.> >
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On Nov 20, 2:55 pm, Jeff <cohen.j...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> p.s. Please don''t say "reply ASAP" when posting. Everyone here is > donating their free time and energy already. :-)Fred Cheung wrote a little article on his blog about that; http://spacevatican.org/2008/11/20/asap "Things most likely to make me not reply to a message on a mailing list: This is urgent Plz reply ASAP" --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
On Thu, Nov 20, 2008 at 3:06 PM, Vamsi Krishna <rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:> > hi all, > > i need to grep a word count from a text file and i want to display the > count. > i need all the above in a rake file , i tried it by using > > today_count= system("grep -R ''time'' oct_10.txt | grep -R ''hi'' | wc > -l") > puts "today count is :#{today_count}" > > but today_count returns ''true'' instead of count.normal, system() return true or false only, not stdout... you can use ``, popen, or code that in ruby. today_count = File.open(''oct_10.txt'').grep(''time'').grep(''hi'').size (not tested) -- Gabriel Laskar <bibi.skuk-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Gabriel Laskar wrote:> On Thu, Nov 20, 2008 at 3:06 PM, Vamsi Krishna > <rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote: >> >> but today_count returns ''true'' instead of count. > normal, system() return true or false only, not stdout... > > you can use ``, popen, or code that in ruby. > > today_count = File.open(''oct_10.txt'').grep(''time'').grep(''hi'').size > > (not tested) > -- > Gabriel Laskar <bibi.skuk-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>Thanks all of you for the reply. --vamsi krishna. -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---