PerlMonks - Newest Nodes

copyfail challenge: making Perl version smaller

dmitri — Thu, 30 Apr 2026 01:37:12 +0000

Hello Fellow Monks! By now, I am sure you have heard of the "732 bytes of Python code to root every major Linux distro." (I checked it out -- it works. Don't run it on your own machin...

Installation of 2 module prerequisites failing - using cpanm

Intrepid — Tue, 28 Apr 2026 21:52:58 +0000

Hi Monks. I don't know if anyone can help me with this, but I'll ask anyhow. I'm doing this on the commandline: $ PERL5LIB=~/build/perl-testi...

Perl Inheritance Not Working as Expected

InfiniteSilence — Tue, 28 Apr 2026 18:24:08 +0000

So I write a response to this blogs.perl.org post titled, 'Who Tests the Tester? Me!!!...

parentheses missing in action

Anonymous Monk — Tue, 28 Apr 2026 18:15:21 +0000

I'm using autodie so this seemed reasonable: open my $pipe, $cmds; But perl warns: Parentheses missing around "my" list at ... It works but it warns and I know why. All o...

Where are the perldelta files for development releases?

Anonymous Monk — Tue, 28 Apr 2026 07:03:46 +0000

perl5160delta says: Documentation Removed Documentation Development Deltas The perldelta files for development releases are no l...

Re^2: copyfail challenge: making Perl version smaller

harangzsolt33 — Thu, 30 Apr 2026 19:31:35 +0000

You may want to watch this movie. It is really an eye-opener about AI... THE THINKING GAME https://www.youtube.com/watch?v=d95J8yzvjbQ...

Re^2: copyfail challenge: making Perl version smaller

dmitri — Thu, 30 Apr 2026 19:27:10 +0000

Yes, but until you reboot (or flush pagecache), the su command is bad. And some people do not reboot for a long time. I checked the functionality of the exploit in QEMU....

Re^2: copyfail challenge: making Perl version smaller

dmitri — Thu, 30 Apr 2026 19:25:55 +0000

That's true -- I think I should have posted my code with the original comment....

Re: copyfail challenge: making Perl version smaller

LanX — Thu, 30 Apr 2026 16:10:49 +0000

> Don't run it on your own machine, though, as it will mangle your `su` binary The project's site says the effect is gone after rebooting. And even if there was a lasting effect...

Re^4: copyfail challenge: making Perl version smaller

LanX — Thu, 30 Apr 2026 12:30:51 +0000

So we can trust open source modules? There was a recent blog-/reddit-post about hundreds of pull requests produced by AI and accepted within a week. Some commentators pointed out that some...

Re^3: copyfail challenge: making Perl version smaller

marto — Thu, 30 Apr 2026 12:18:42 +0000

"The message now is that all Python code is potentially dangerous, do we want to push to be in the same spotlight?" I don't think that's the message at all. Don't blindly trust any c...

Re^2: copyfail challenge: making Perl version smaller

LanX — Thu, 30 Apr 2026 11:58:34 +0000

> but I guess the PR value of having a "really low number of bytes" in the headline is high. I'm not sure about that PR value. The most likely way for outside attackers is to hi...

Re: copyfail challenge: making Perl version smaller

marto — Thu, 30 Apr 2026 09:26:58 +0000

Context: https://copy.fail....

Re: copyfail challenge: making Perl version smaller

Corion — Thu, 30 Apr 2026 09:22:52 +0000

My guess would be that you would get better responses if you actually posted your attempt. People familiar with the usual golfing approaches can then spot locations where you can improve the golfin...

Re: copyfail challenge: making Perl version smaller

stevieb — Thu, 30 Apr 2026 09:05:19 +0000

At any rate -- I figured, we can make it smaller in Perl! A half hour and a bunch of tokens later, I failed. You're using pronouns like some "AI" deserves one. AI is not intellige...

Re^2: Installation of 2 module prerequisites failing - using cpanm

Corion — Wed, 29 Apr 2026 13:51:33 +0000

I think part of it is the use of --self-contained, while also not having the core modules available maybe due to overriding PERL5LIB and Perl itself not supplying the correct path, ma...

Re^2: Installation of 2 module prerequisites failing - using cpanm

LanX — Wed, 29 Apr 2026 11:33:07 +0000

Hi tobyink You haven't been here for a while, welcome back! :) So you know > likely deeper issues at play Multiple conflicting Perl installations and messed up env...

Re: Installation of 2 module prerequisites failing - using cpanm

tobyink — Wed, 29 Apr 2026 10:50:55 +0000

File::Temp has been bundled with Perl since Perl 5.6.1 was released more than a quarter of a century ago. Test::More has been included since 5.6.2, almost as long ago. If your Perl ...

Re^3: Perl Inheritance Not Working as Expected

bliako — Wed, 29 Apr 2026 09:21:30 +0000

I create OO modules manually. The boilerplate is minimal. FWIW, I use module-starter --module='XXX:XXX' --builder='ExtUtils::MakeMaker' --author='XXX' --email='XXX' to start a new module and...

Re: Installation of 2 module prerequisites failing - using cpanm

bliako — Wed, 29 Apr 2026 09:14:02 +0000

When I try to build the two required modules alone, I can't get a succcessful installation. well, show us the errors of installing the 2 required modules. Unless you...

Re^3: Perl Inheritance Not Working as Expected

hippo — Wed, 29 Apr 2026 08:46:33 +0000

Other stuff but no 'new'. A new() method in the preferred fashion would be good, no? No, because: Not every module is a class. Some (...

Re^2: Perl Inheritance Not Working as Expected

InfiniteSilence — Tue, 28 Apr 2026 19:49:12 +0000

This error is just too easy to make. I used to use h2xs but it creates so much stuff that I avoid using it. I was at a Perl conference where one of the Stonehenge presenters used a 'new' tool to ...

Re: Perl Inheritance Not Working as Expected

Fletch — Tue, 28 Apr 2026 19:02:23 +0000

If you check the new in the FakeTuple it's using the one arg'd version of bless which as noted in the documentation for same isn't inheritable. The constructor should be using the...

Re: parentheses missing in action

Corion — Tue, 28 Apr 2026 18:54:24 +0000

See https://github.com/Perl/perl5/pull/24378, which discusses the heuristic....

Re^3: Interpolate variable into regexp at time of definition rather than execution, as a filter for Path::Iterator::Rule (FATAL warnings)

LanX — Tue, 28 Apr 2026 16:02:54 +0000

So the TL;DR version is you wrote my $int - $1; instead of my $int = $1; and didn't notice the warnings. ;-) > (It is unfortunate ...

Re^2: Interpolate variable into regexp at time of definition rather than execution, as a filter for Path::Iterator::Rule

ecm — Tue, 28 Apr 2026 15:03:59 +0000

Thank you, it was indeed an error on my part. I originally used $1 in the filter's regexp which does generate a similar error message (that was part of what misled me later). I also pruned a test c...

Re: Where are the perldelta files for development releases?

Corion — Tue, 28 Apr 2026 07:13:35 +0000

The Perldelta files for a development version are distributed with the development version, for example Perl 5.43.9 contains the Perldelta files f...

roomi

roomi — Tue, 28 Apr 2026 12:33:18 +0000

enategaa

enategaa — Tue, 28 Apr 2026 07:25:34 +0000