Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

1. How do I uninstall modules?

uninstalling modules should give you some hints. But I personally never uninstall modules (unless there is a big problem), and I install quite a few to look at and test out. They're generally small (disk space is cheap) and generally don't conflict with each other. On the very rare occasion I do uninstall a module - I do it by hand (IIRC I've only done that once over 8+ years).

2. When I run's shell for the first time, among the list of questions it asks, it wants me to tell it which mirrors to use. In North America, USA, there's about 62 url's from which to choose. Is there some option at this point to simply ask to ping some of them and automatically select the quickest and least burdened ones?

Not that I know of. But geographic info is often in the mirror name for .edu's. That and you can pick quite a few and if you start having a problem it fairly easy to get back into the CPAN config.

3. Is it more common for most Perlers to just install modules by-hand and not even bother with (or CPANPLUS)?

I generally install by CPAN but about 1/4 of the time tests will fail. I then revert to installing by hand to see what tests fail and if I'm concerned about them. The nice thing about this is usually, most of the dependacies are taking care of by CPAN and I just have to do the orginal module by hand. Almost all the test failures I see are on the actual module I'm trying to install and rarely the dependancies.

4. On Debian, most modules I need are usually already available via apt-get. I'm guessing it's asking for a big mess to alternately use apt-get and for the same Perl installation. What do most Debian users do regarding

I can't say anything about apt-get but I do get some large/complex modules (WX modules, GTK* modules by rpm and yum. This has never caused me a problem and saved a bit of time finding external depenancies and compiling.

5. How do I keep my modules up-to-date? In other words, what's the equivalent of Debian's "apt-get upgrade"?

There is the upgrade command from CPAN. But be careful. You need to watch modules you heavily depend on (like DBI and your DBD's, and DBIx::Class) for interface changes. I wouldn't use any kind of automation for this /me is paranoid

6. According to the docs at, development of is stalled and the module may eventually be replaced by CPANPLUS. However, search.cpan shows that both distributions seem to be pretty current. Will CPANPLUS still probably eventually replace

CPAN seems to be going along. I just sent a bug report and got a reply from Schwern in a day.

7. Finally, if I think I've completely botched up things using, how can I wipe out everything that was installed by That is, is there a simple "rm -fr" I can do to start from scratch without touching the rest of my Perl installation?

Not that I know of, but I would doubt you could ever get to that point. CPAN makes it pretty easy. You may get into a problem with one module, but if you take your time it's pretty easy to get rid of it by hand.

Just me, the boy, two monks, and no questions asked

In reply to Re: help managing modules using by grep
in thread help managing modules using by j3

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others musing on the Monastery: (7)
    As of 2015-11-28 19:20 GMT
    Find Nodes?
      Voting Booth?

      What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

      Results (743 votes), past polls