From: WATANABE Hirofumi <eban@...>
Date: 2002-08-23T13:20:59+09:00
Subject: Re: idiomatic write

Hi,

Vivek Nallur <nvivek@konark.ncst.ernet.in> writes:

> I want to search for a pattern in a file, replace it with something and
> then write it back to the file. In the shell-script idiom,
> I'd do:
> 
> sed /pattern/replace myfile > tmpfile
> mv tmpfile myfile
> 
> In Ruby, I could do the same thing, slurp the file into a string and then
> write it back again. I was wondering if there's a more idiomatic way of
> doing it, in place, i.e., edit the file straight away. This could probably
> be more practical when the file to be edited is a huge one...
> 
> Any pointers(sic)...

% ruby -i~ -pe 'gsub(/pattern/, "replace")' myfile

-- 
eban