Hi folks,
Which built-in method is used to search a file in a directory and all
its children directory?
Thanks,
Li
Li Chen wrote:
Which built-in method is used to search a file in a directory and all
its children directory?
As always, there are more ways, depending on what you want to do. For
simple searching of a file by name Dir is easiest. Find is more
appropriate for tasks that have to deal with every file etc.
http://ruby-doc.org/core/classes/Dir.html
http://ruby-doc.org/stdlib/libdoc/find/rdoc/index.html
Regards
robert
Li Chen wrote:
Hi folks,
Which built-in method is used to search a file in a directory and all
its children directory?Thanks,
Li
Use Find.find to traverse a directory and subdirectories:
timothyhunter$ ri Find
------------------------------------------------------------ Class: Find
The Find module supports the top-down traversal of a set of file
paths.
For example, to total the size of all files under your home
directory, ignoring anything in a "dot" directory (e.g.
$HOME/.ssh):
require 'find'
total_size = 0
Find.find(ENV["HOME"]) do |path|
if FileTest.directory?(path)
if File.basename(path)[0] == ?.
Find.prune # Don't look any further into this
directory.
else
next
end
else
total_size += FileTest.size(path)
end
end
Instance methods:
find, prune
Li Chen wrote:
Hi folks,
Which built-in method is used to search a file in a directory and all
its children directory?
Yup, I was looking for something similar, a simple way
to get the functionality of the unix “find” command.
I was motivated by the slow search facility under XP. Not
sure if ruby might be faster, but it made me curious how
I would specify a file to be found in a directory tree.
As a newbie I am still not quite familiar with all of the
facilities or libraries, maybe it’s obvious 
eb
EB wrote:
As a newbie I am still not quite familiar with all of the
facilities or libraries, maybe it’s obviouseb
Me, too. I need to spend some time to read the documentation and figure
out how to write the script.
Li
Thank you for you all,
Li
Li Chen wrote:
EB wrote:
As a newbie I am still not quite familiar with all of the
facilities or libraries, maybe it’s obviouseb
Me, too. I need to spend some time to read the documentation and figure
out how to write the script.
Didn’t you see my last reply? Do we have a gateway problem again?
robertRobert K. wrote:
Didn’t you see my last reply? Do we have a gateway problem again?
robert
Yes if you mean the information on the previous post:
…
http://ruby-doc.org/core/classes/Dir.html
http://ruby-doc.org/stdlib/libdoc/find/rdoc/index.html
As I reply to EB I need time to read the doc and write the script by
myself.
Li
EB wrote:
Yup, I was looking for something similar, a simple way
to get the functionality of the unix “find” command.I was motivated by the slow search facility under XP. Not
sure if ruby might be faster, but it made me curious how
I would specify a file to be found in a directory tree.As a newbie I am still not quite familiar with all of the
facilities or libraries, maybe it’s obviouseb
Hi EB,
I think Robert kindly provies a pretty neat script which is what I want.
I am not sure if you also need a similar one like this, which searches a
directory and all children directory for the file specified.
Li
require ‘find’
path=‘I:/Common/xxx/Notebooks/Flow/OT1/OTI-4’
file_number = 0
Find.find(path) do |f|
puts f if File.file?(f) && f=~/.\d+$/
# print out the file with format xxx.001 xxx.002…
file__number+=1
end
puts file_number
On Oct 22, 2006, at 12:15 PM, Robert K. wrote:
Do we have a gateway problem again?
We took some pretty drastic measures when we addressed the last
Gateway issue and haven’t seen a thing since. I think we have it
pretty locked down now.
James Edward G. II
Li Chen wrote:
As I reply to EB I need time to read the doc and write the script by
myself.
No, there was another posting. I realize it is in another thread:
http://groups.google.com/group/comp.lang.ruby/msg/afcb5813faa9d3a8
Regards
robert