From: Emmanuel Oga <oga_emmanuel_oga@...>
Date: 2007-04-05T04:53:38+09:00
Subject: Re: search a file and replace text

def ChangeOnFile(file, regex_to_find, text_to_put_in_place)
  text= File.read file
  File.open(file, 'w+'){|f| f << text.gsub(regex_to_find, 
text_to_put_in_place)}
end

Then:

ChangeOnFile('/etc/myfile.conf', /30890/, "32737")

Phil Swenson wrote:
> I need to search a specific xml file in a directory, look for:
> 
> <port system-property="tangosol.coherence.clusterport">30890</port>
> 
> and if the port 30890 is still there replace it with a different
> integer.
> 
> I know of several ways to do this (like open the file, iterate the
> lines until I find the integer, do a gsub! on on the integer).  But it
> seems like there might be a better way to do it.  Is there a search
> and replace API I don't know about?
> 
> Any thoughts?


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