From: Robert Klemme <bob.news@...>
Date: 2004-07-30T17:36:43+09:00
Subject: Re: subject="apply multiple regex to each line"


"Ralf M�ller" <r_mueller@imp-ag.de> schrieb im Newsbeitrag
news:200407300950.52559.r_mueller@imp-ag.de...
> hi out there,
> i wanted to $subject of a file. For a single regex, i used perl (ok,
that's my fault):
> perl -pi -e '<regex>' file
>
> but for $subject i did something like
> ruby -e 'p gets.gsub(....).gsub(....).gsub(....) while gets' file
>
> is there an equivalent expression in perl?

That's a Perl question, which is probably better answered in a Perl NG.

> And, does anyone know a smart expression to delete lines, which only
contain any kinds of spaces?

egrep -v '^[[:space:]]*$' <file>

> Till now i use:
> ruby -e 'puts readlines.to_s.gsub(/\n{2,}/,"\n").split(/\n/)'
eddi-bef.dump > 1table

Much more efficient:

ruby -n -e 'print $_ unless /^\s*$/' eddi-bef.dump > 1table

    robert