From: Abhijeet Dharmapurikar <abhi_don@...>
Date: 2007-08-17T09:05:04+09:00
Subject: Re: file grep

Thanks Felix I just had to change one line
<   paths.find_all{|path| File.basename == filename}.each do |match|
>   paths.find_all{|path| File.basename(path) == filename}.each do |match|

but it worked like a charm.

Regards,
Abhijeet



Felix Windt wrote:
>> 
>> done
>> 
>> 
>> How do I do this in ruby  ? If possible (again if possible) 
>> explain what the code does. If not I will google and update 
>> what each line does.
>> --
>> Posted via http://www.ruby-forum.com/.
>> 
> 
> 
> Disclaimer: Reading the complete files in to arrays like this may cost a
> bunch of memory depending on file size
> 
> # read in an array that contains one element per line from the list of
> filesnames
> filenames = File.new("filenames.txt").readlines
> # read in an array that contains one element per line from the list of 
> full
> filepaths
> paths = File.new("allfilespath.txt").readlines
> # cycle through all filenames
> filenames.each do |filename|
>   # File.basename with one argument returns the last element of the
> filepath, so the filename in a path
>   # the find_all method from the Enumerable mixin passes each element of 
> the
> collection to the block, and returns an array of those where the block
> evaluates to true
>   paths.find_all{|path| File.basename == filename}.each do |match|
>     # cycle through the matches, and print them
>     puts "#{filename} matches #{match}"
>   end
> end
> 
> 
> HTH,
> 
> Felix

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