Re: [exim] bash or perl question

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Autor: Chris Lightfoot
Data:  
Para: Nigel Metheringham
CC: exim-users
Assunto: Re: [exim] bash or perl question
On Fri, Jun 23, 2006 at 03:17:01PM +0100, Nigel Metheringham wrote:
> On Fri, 2006-06-23 at 16:10 +0200, Daniel Tiefnig wrote:
> > Gareth Hastings wrote:
> > > cat file | awk -F. '{print $4"."$3"."$2"."$1}'
> > >
> > > (Less typing than above!!!!)
> >
> > UUOCAP (useless use of cat and pipe):
> >
> > awk -F. '{print $4"."$3"."$2"."$1}' file
>
> for perl aficionados...
> perl -ne 'chomp;print join(".",reverse(split(/\./)),"\n"' file
>
> which is neither shorter, more comprehensible or more obvious than the
> awk version... so I'm not sure why I posted it.


surely you want?
    cut -sd. -f1-4
?


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