Question

I need to catch a CSV portion of a text file from a REGEXP until the second blank line. Something like below:

garbage garbage
garbage garbage
garbage garbage

REGEXP

data,data,data
data,data,data

garbage garbage
garbage garbage
garbage garbage

Any ideas how to do this in sed or perl will be greatly appreciated.

Answer 1

perl -ne '$on=1 if /REGEXP/; if ($on) { print; $blank++ if /^\s*$/; last if $blank == 2 }' file.csv

Will display:

    REGEXP

data,data,data
data,data,data

If you don’t want to display REGEXP:

perl -ne '$on=1 and next if /REGEXP/; if ($on) { print; $blank++ if /^\s*$/; last if $blank == 2 }' file.csv