I'm rather fond of the perl -pi -e 's///' type "programs." I began to wonder about techniques that might make it possible to use -pi from the middle of a bigger program, similar to the following, but without forking with system.

Is it possible to somehow repopulate @ARGV and re-invoke the command line switches? or something? 

use warnings;
use strict;

# do many boring things

while(<*something*>) {
    system(qw(perl -pi -e), $program) == 0 or die;
}

# do many more boring things

[download]

Obviously, it'd probably be more appropriate to just write the proper while loop and file copy/renaming code. But changing the file perms and ownerships is cumbersome and I want something slick and easy.

Also, the more I think about it, repopulating @ARGV is pretty simple... duh.

-Paul

In reply to -pi -e argv repeater by jettero

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