Re: How to remove unwanted lines from file.

From: "Ramesh Polepalli&quot; < ramesh.polepalli%40mformation.com">ramesh.polepallimformation.com>
> I want to remove some lines containing some specific characters in a
> file.
&gt;
> Is there any command line "One liner"; available to do the same in Perl
>; without having to create new file and renaming it back?

perl -pi.bak -e "$_ = '' if /ignorestring/" sourcefile
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>>&gt;>> "Jenda" == Jenda Krynicky < Jenda%40Krynicky.cz">JendaKrynicky.cz> writes:

Jenda>; perl -pi.bak -e "$_ = '' if /ignorestring/" sourcefile

I find

perl -ni.bak -e 'print unless /ignorestring/" sourcefile

saner to read. Somehow, the idea of "print ''" seems wasteful,
and potentially dangerous if "-l&quot; is involved.

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