From: Michael Fellinger <m.fellinger@...>
Date: 2005-12-27T19:46:14+09:00
Subject: Re: Found a neat trick for doing recursive one-liners

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I really prefer the simple variant...
ruby -e 'puts Dir["**/a*.{rb}"]'

finds all .rb that start with 'a', recursive of course :)

Am Dienstag, 27. Dezember 2005 11:36 schrieb dblack@wobblini.net:
> Hi --
>
> On Tue, 27 Dec 2005, ara.t.howard@noaa.gov wrote:
> > On Tue, 27 Dec 2005, Gary Watson wrote:
> >> This is probably something everyone in here already knows about, but I
> >> thought it was cool enough that I wanted to post about it.
> >>
> >> If you want to create a one liner to say search all the *.txt files
> >> in and under the current directory for text matching "Hello", you can do
> >> this
> >>
> >> find -name '*.txt' -exec ruby -ne 'print if /Hello/' '{}' ';'
> >>
> >> I know you can do this in pure ruby in like 3 lines if you use the Find
> >> module, but I really wanted to do it with a one liner.  Earlier I tried
> >> something like this
> >>
> >> ruby -ne 'print if /Hello/' `find -name '*.txt'`
> >
> >  ruby -e'  puts Dir["**/**"].select{|e| e =~ /a.rb/}  '
>
> We've strayed a little from the original thing, but along those lines
> you could also do:
>
>   ruby -e 'puts Dir["**/**"].grep(/a\.rb/)'
>
> (just guessing about the \. part :-)
>
> or maybe even:
>
>    ruby -e 'puts Dir["**/*a.rb*/"]
>
>
> David

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