Re: do shell script- sed conundrum
Re: do shell script- sed conundrum
- Subject: Re: do shell script- sed conundrum
- From: "Mark J. Reed" <email@hidden>
- Date: Fri, 17 Feb 2006 13:11:15 -0500
Er, sorry. perl -ne does what sed -ne does. perl -pe does what sed
with no options does.
-p, not -n.
On 2/17/06, Mark J. Reed <email@hidden> wrote:
> Uhm, so why use sed? Just use perl. perl -ne 's/.../.../' filename
> does what sed 's/.../.../' filename does.
>
> However, your regex looks wrong. s/\BTitle:/Title:\r" will turn
> "Title: King KongTitle: Godzilla" into
> "Title: King KonTitle:
> Godzilla".
>
> You want to 1. keep whatever the \B matches and 2. put the newline
> *before* the word Title.
>
> perl -ne 's/(\B)(Title)/$1\n$2/' title.txt
>
>
>
> On 2/17/06, Eric Geoffroy <email@hidden> wrote:
> > This is a tiny part of a sed script that I'm calling from 'do shell
> > script' This is the misbehaving part.
> >
> >
> > SOURCE
> > Title: King KongTitle: Godzilla
> > Title: Mothra
> >
> > DESIRED RESULT
> > Title: King Kong
> > Title: Godzilla
> > Title: Mothra
> >
> > I worked out the regex to match '\BTitle: '
> > to negate the word boundary. In sed though, the boundary is \<
> > but I can't figure out how to negate that.
> >
> > In my make-believe world, this would work-
> >
> > sed 's/\BTitle:/Title:\r/' title.txt
> >
> > I also tried ^\<(Title)
> >
> > In the real world, the \B is invalid for sed, and the shell in OSX is
> > not handling the \r.
> >
> > thx
> > - Eric
> >
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>
> --
> Mark J. Reed <email@hidden>
>
--
Mark J. Reed <email@hidden>
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