On 30 August 2013 10:38, Dave Mitchell <davem(a)iabyn.com> wrote:
On Fri, Aug 30, 2013 at 10:50:31AM +0200, Timothy Murphy wrote:
> that will print out a whole paragraph -
> defined as the section between two blank lines -
> containing a given word or phrase?
>
> Such as the above 4 lines.
> If not, can anyone suggest a simple script that will do this?
The perl one-liner below demonstrates this. Setting the $/ (input record
separator) var to the empty string causes perl to read in "lines" a
paragraph at a time.
$ perl -e'$/=""; while (<>) { print if /green/ }' /tmp/text
You can use Perl's command line options to clean that up a bit.
$ perl -00 -ne 'print if /green/' para.txt
-00 is the same as $/=""
-n is the same as "while (<>) { YOUR CODE HERE }"
See "perldoc perlrun" (
http://perldoc.perl.org/perlrun.html) for details.
--
Dave Cross :: dave(a)dave.org.uk
http://dave.org.uk/
@davorg