[gentoo-user] Crufted with perl modules?

[gentoo-user] Crufted with perl modules?

[Grant]

I was having trouble getting g-cpan to work with a Bundle of CPAN perl
modules and I got frustrated and started to install it with perl
-MCPAN -e instead.  After a little while I thought better of it and
exited the installation, but should I now have perl modules spread
across my filesystem that aren't known by portage?  Is there any way
to clean them up?  Would installing the same Bundle with g-cpan be
guaranteed to straighten everything out?

- Grant

Re: [gentoo-user] Crufted with perl modules?

[Adam Carter]

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 but should I now have perl modules spread

> across my filesystem that aren't known by portage?  Is there any way
> to clean them up?  Would installing the same Bundle with g-cpan be
> guaranteed to straighten everything out?
>
> qfile -orphans ?

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Re: [gentoo-user] Crufted with perl modules?

[Grant]

> but should I now have perl modules spread
>>
>> across my filesystem that aren't known by portage?  Is there any way
>> to clean them up?  Would installing the same Bundle with g-cpan be
>> guaranteed to straighten everything out?
>>
> qfile -orphans ?

That sounds promising but I get:

# qfile --orphans
Usage: qfile <opts> <filename> : list all pkgs owning files

Options: -[ef:m:oRx:SvqChV]
  -e, --exact          * Exact match
  -f, --from     <arg> * Read arguments from file <arg> ("-" for stdin)
  -m, --max-args <arg> * Treat from file arguments by groups of <arg>
(defaults to 5000)
  -o, --orphans        * List orphan files
  -R, --root-prefix    * Assume arguments are already prefixed by $ROOT
  -x, --exclude  <arg> * Don't look in package <arg>
  -S, --slots          * Display installed packages with slots
  -v, --verbose        * Make a lot of noise
  -q, --quiet          * Tighter output; suppress warnings
  -C, --nocolor        * Don't output color
  -h, --help           * Print this help and exit
  -V, --version        * Print version and exit

I'm not sure what it's asking me to do.

- Grant

Re: [gentoo-user] Crufted with perl modules?

[Willie Wong]

On Tue, Nov 16, 2010 at 05:42:24PM -0800, Grant wrote:
> > qfile -orphans ?
> 
> That sounds promising but I get:
> 
> # qfile --orphans
> Usage: qfile <opts> <filename> : list all pkgs owning files
> 

qfile --orphans needs to take input a filename.

So to go through your system looking for all orphaned files, you do
something like

find / -exec qfile -o  '{}' \;

... which will produce a load of output that you don't want. So best
to (1) restrict to smaller subdirectories (instead of /, do
/usr/lib/perl5), and (2) redirect the output to disk. 

W
-- 
Willie W. Wong                                     wwong@math.princeton.edu
Data aequatione quotcunque fluentes quantitae involvente fluxiones invenire 
         et vice versa   ~~~  I. Newton

Re: [gentoo-user] Crufted with perl modules?

[Grant]

>> > qfile -orphans ?
>>
>> That sounds promising but I get:
>>
>> # qfile --orphans
>> Usage: qfile <opts> <filename> : list all pkgs owning files
>>
>
> qfile --orphans needs to take input a filename.
>
> So to go through your system looking for all orphaned files, you do
> something like
>
> find / -exec qfile -o  '{}' \;
>
> ... which will produce a load of output that you don't want. So best
> to (1) restrict to smaller subdirectories (instead of /, do
> /usr/lib/perl5), and (2) redirect the output to disk.

Thanks Willie, that gave me a great list.  Very cool command.  Almost
all the orphaned stuff in /usr/lib/perl5 is either in:

/usr/lib/perl5/site_perl/5.12.2

with corresponding but not orphaned contents in:

/usr/lib/perl5/vendor_perl/5.12.2

or the orphaned stuff is in:

/usr/lib/perl5/5.12.2/x86_64-linux

Do the orphaned files sound OK to delete in this case?  Is there a
slick way to do so?

- Grant

Re: [gentoo-user] Crufted with perl modules?

[Neil Bothwick]

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On Tue, 16 Nov 2010 19:18:23 -0800, Grant wrote:

> > find / -exec qfile -o  '{}' \;

> Thanks Willie, that gave me a great list.  Very cool command.  Almost
> all the orphaned stuff in /usr/lib/perl5 is either in:
> 
> /usr/lib/perl5/site_perl/5.12.2
> 
> with corresponding but not orphaned contents in:
> 
> /usr/lib/perl5/vendor_perl/5.12.2

Does the first directory contain symlinks to the files in the second? You
should exclude symlinks from the process by adding -type f to the find
command (you can clear up dangling symlinks later).

> or the orphaned stuff is in:
> 
> /usr/lib/perl5/5.12.2/x86_64-linux
> 
> Do the orphaned files sound OK to delete in this case?  Is there a
> slick way to do so?

If you know which modules you installed with CPAN, you should be able to
tell which directory contains the files you need to get rid of. Then run
the find ... --orphans command over that directory and feed its output to
rm.


-- 
Neil Bothwick

Will the last human please uninstall internet.exe.

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Re: [gentoo-user] Crufted with perl modules?

[Joerg Schilling]

Willie Wong <wwong@Math.Princeton.EDU> wrote:

> So to go through your system looking for all orphaned files, you do
> something like
>
> find / -exec qfile -o  '{}' \;
>
> ... which will produce a load of output that you don't want. So best

This is why find -exec + exists since 20 years.


Jörg

-- 
 EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
       js@cs.tu-berlin.de                (uni)  
       joerg.schilling@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/
 URL:  http://cdrecord.berlios.de/private/ ftp://ftp.berlios.de/pub/schily

Re: [gentoo-user] Crufted with perl modules?

[Sebastian Beßler]

Am 17.11.2010 10:19, schrieb Joerg Schilling:

> This is why find -exec + exists since 20 years.

Could you enlighten me about this?
I look into man find but it says nothing about -exec + or a + operator 
at all. Also adding + to the command doesn't work either.

Greetings

Sebastian Beßler

Re: [gentoo-user] Crufted with perl modules?

[Albert Hopkins]

On Wed, 2010-11-17 at 13:52 +0100, Sebastian Beßler wrote:
> Am 17.11.2010 10:19, schrieb Joerg Schilling:
> 
> > This is why find -exec + exists since 20 years.
> 
> Could you enlighten me about this?
> I look into man find but it says nothing about -exec + or a + operator 
> at all. Also adding + to the command doesn't work either.
> 

Which man page are you looking at?  It's in my find man page at least.

Re: [gentoo-user] Crufted with perl modules?

[Sebastian Beßler]

Am 17.11.2010 13:54, schrieb Albert Hopkins:
> On Wed, 2010-11-17 at 13:52 +0100, Sebastian Beßler wrote:
>> Am 17.11.2010 10:19, schrieb Joerg Schilling:
>>
>>> This is why find -exec + exists since 20 years.
>>
>> Could you enlighten me about this?
>> I look into man find but it says nothing about -exec + or a + operator
>> at all. Also adding + to the command doesn't work either.
>>
>
> Which man page are you looking at?  It's in my find man page at least.
>
>

man find

Aktionen
-exec Kommando;
führt das Kommando aus; die Aktion ist wahr, wenn das Kommando 	einen 
Status von Null liefert; alle auf den  Kommandonamen  folgenden 
Argumente bis zu einem Semikolon ; werden als Kommandozeilenargumente 
für das Kommando interpretiert; das Semikolon kann nicht weggelassen 
werden, und es muss durch mindestens ein Whitespace von der letzten 
Option getrennt werden; die Konstruktion {} wird durch den Pfadnamen 
der  Datei  ersetzt; die Klammern und das Semikolon müssen in der 
Kommandozeile für find quotiert werden, damit sie nicht von der Shell 
bearbeitet werden

There is only one -exec option explained, no + to see.
The only option with a + in my manpage is -perm +Modus

No I have not tried the english version, I thought that a option that 
exists for 20 years should be in translated manpages too.

The last line of the manpage says:
LunetIX 	Linuxhandbuch	1.Juli 1993	FIND(1)
so it is newer then 20 years but not much. That really should be updated.

Re: [gentoo-user] Crufted with perl modules?

[Albert Hopkins]

On Wed, 2010-11-17 at 14:13 +0100, Sebastian Beßler wrote:
> Am 17.11.2010 13:54, schrieb Albert Hopkins:
> > On Wed, 2010-11-17 at 13:52 +0100, Sebastian Beßler wrote:
> >> Am 17.11.2010 10:19, schrieb Joerg Schilling:
> >>
> >>> This is why find -exec + exists since 20 years.
> >>
> >> Could you enlighten me about this?
> >> I look into man find but it says nothing about -exec + or a + operator
> >> at all. Also adding + to the command doesn't work either.
> >>
> >
> > Which man page are you looking at?  It's in my find man page at least.
> >
> >
> 
> man find
> 
> Aktionen
> -exec Kommando;
> führt das Kommando aus; die Aktion ist wahr, wenn das Kommando 	einen 
> Status von Null liefert; alle auf den  Kommandonamen  folgenden 
> Argumente bis zu einem Semikolon ; werden als Kommandozeilenargumente 
> für das Kommando interpretiert; das Semikolon kann nicht weggelassen 
> werden, und es muss durch mindestens ein Whitespace von der letzten 
> Option getrennt werden; die Konstruktion {} wird durch den Pfadnamen 
> der  Datei  ersetzt; die Klammern und das Semikolon müssen in der 
> Kommandozeile für find quotiert werden, damit sie nicht von der Shell 
> bearbeitet werden
> 
> There is only one -exec option explained, no + to see.
> The only option with a + in my manpage is -perm +Modus
> 
> No I have not tried the english version, I thought that a option that 
> exists for 20 years should be in translated manpages too.

I'm not sure where that man page came from.   Says it conforms to 2003
POSIX. So is at least 10 years more recent than yours.



http://linux.die.net/man/1/find

Re: [gentoo-user] Crufted with perl modules?

[Stroller]

On 17/11/2010, at 1:13pm, Sebastian Beßler wrote:
>>>> This is why find -exec + exists since 20 years.
>>> 
>>> Could you enlighten me about this?
>>> I look into man find but it says nothing about -exec + or a + operator
>>> at all. Also adding + to the command doesn't work either.
>> 
>> Which man page are you looking at?  It's in my find man page at least.
> 
> man find
> 
> Aktionen
> -exec Kommando;
> führt das Kommando aus; die Aktion ist wahr, wenn das Kommando 	einen Status von Null liefert; alle auf den  Kommandonamen  folgenden Argumente bis zu einem Semikolon ; werden als Kommandozeilenargumente für das Kommando interpretiert; das Semikolon kann nicht weggelassen werden, und es muss durch mindestens ein Whitespace von der letzten Option getrennt werden; die Konstruktion {} wird durch den Pfadnamen der  Datei  ersetzt; die Klammern und das Semikolon müssen in der Kommandozeile für find quotiert werden, damit sie nicht von der Shell bearbeitet werden
> 
> There is only one -exec option explained, no + to see.
> The only option with a + in my manpage is -perm +Modus
> 
> No I have not tried the english version, I thought that a option that exists for 20 years should be in translated manpages too.

       -exec command {} +                                                       
              This  variant  of the -exec action runs the specified command on
              the selected files, but the command line is built  by  appending
              each  selected file name at the end; the total number of invoca‐
              tions of the command will  be  much  less  than  the  number  of
              matched  files.   The command line is built in much the same way  
              that xargs builds its command lines.  Only one instance of  `{}'
              is  allowed  within the command.  The command is executed in the
              starting directory.   

Stroller.

Re: [gentoo-user] Crufted with perl modules?

[Stroller]

On 17/11/2010, at 12:58am, Grant wrote:
> I was having trouble getting g-cpan to work with a Bundle of CPAN perl
> modules and I got frustrated and started to install it with perl
> -MCPAN -e instead. 

The state of g-cpan really is a shame. :(

When I bought a lottery ticket the other week, I determined to throw some money at developers to fix it, should my numbers come up. This post is a suggestion to the members of the list who have recently won millions.

Stroller.

Re: [gentoo-user] Crufted with perl modules?

[John Campbell]

On 11/17/2010 05:13 AM, Sebastian Beßler wrote:
> Am 17.11.2010 13:54, schrieb Albert Hopkins:
>> On Wed, 2010-11-17 at 13:52 +0100, Sebastian Beßler wrote:
>>> Am 17.11.2010 10:19, schrieb Joerg Schilling:
>>>
>>>> This is why find -exec + exists since 20 years.
>>>
>>> Could you enlighten me about this?
>>> I look into man find but it says nothing about -exec + or a + operator
>>> at all. Also adding + to the command doesn't work either.
>>>
>>
>> Which man page are you looking at?  It's in my find man page at least.

It's the section right after "-exec command {} ;"

-exec command {} +

This variant of the -exec action runs the specified command on the
selected files, but the command line is built by  appending  each
selected  file name at the end; the total number of invocations of the
command will be much less than the number of matched files.  The command
line is built in much the same way  that  xargs  builds  its
command  lines.  Only one instance of `{}' is allowed within the
command.  The command is executed in the starting directory.

Re: [gentoo-user] Crufted with perl modules?

[Sebastian Beßler]

Am 17.11.2010 23:14, schrieb John Campbell:
> On 11/17/2010 05:13 AM, Sebastian Beßler wrote:
>> Am 17.11.2010 13:54, schrieb Albert Hopkins:
>>> On Wed, 2010-11-17 at 13:52 +0100, Sebastian Beßler wrote:
>>>> Am 17.11.2010 10:19, schrieb Joerg Schilling:
>>>>
>>>>> This is why find -exec + exists since 20 years.
>>>>
>>>> Could you enlighten me about this?
>>>> I look into man find but it says nothing about -exec + or a + operator
>>>> at all. Also adding + to the command doesn't work either.
>>>>
>>>
>>> Which man page are you looking at?  It's in my find man page at least.
>
> It's the section right after "-exec command {} ;"
>
> -exec command {} +

It looks like the german man page doesn't have it in.
I found it after all using the english man page.
What good are the translations when features that old are not included?

So today I have learned never to trust a translation.

Greetings

Sebastian Beßler

Re: [gentoo-user] Crufted with perl modules?

[Adam Carter]

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I wasnt familiar with + but it changes the default behavior of this;
find /path -name something -exec ls -lS {} \;
which will run ls -lS once for each file, and therefore Sort doesnt work as
its only sorting a single file

find /patch -name something -exec -ls -lS +
which runs ls -lS once against all the files that find finds (added as
additional arguments), and therefore Sort works.

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Re: [gentoo-user] Crufted with perl modules?

[Alan McKinnon]

Apparently, though unproven, at 00:49 on Thursday 18 November 2010, Adam 
Carter did opine thusly:

> I wasnt familiar with + but it changes the default behavior of this;
> find /path -name something -exec ls -lS {} \;
> which will run ls -lS once for each file, and therefore Sort doesnt work as
> its only sorting a single file
> 
> find /patch -name something -exec -ls -lS +
> which runs ls -lS once against all the files that find finds (added as
> additional arguments), and therefore Sort works.

Almost right.

-exec + will not append all filenames found and run one command,

it will append the maximum number of filenames that do not exceed the shell 
command line limit, and do that enough times to get through all the filenames. 

You will be surprised how easy it is to get a directory with enough files in 
it to exceed the shell command length limit (65535 chars?). I have several 
users who will gladly show you how it's done, and will show you where they 
have each done it in multiple places

-- 
alan dot mckinnon at gmail dot com

Re: [gentoo-user] Crufted with perl modules?

[Adam Carter]

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> > find /patch -name something -exec -ls -lS +
> > which runs ls -lS once against all the files that find finds (added as
> > additional arguments), and therefore Sort works.
>
> Almost right.
>
> -exec + will not append all filenames found and run one command,
>
> it will append the maximum number of filenames that do not exceed the shell
> command line limit, and do that enough times to get through all the
> filenames.
>

Thanks for that Alan. I wasnt 100% sure I understood the man page, and that
issue could definitely bite if you weren't aware!

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Re: [gentoo-user] Crufted with perl modules?

[Alan McKinnon]

Apparently, though unproven, at 01:03 on Thursday 18 November 2010, Adam 
Carter did opine thusly:

> > > find /patch -name something -exec -ls -lS +
> > > which runs ls -lS once against all the files that find finds (added as
> > > additional arguments), and therefore Sort works.
> > 
> > Almost right.
> > 
> > -exec + will not append all filenames found and run one command,
> > 
> > it will append the maximum number of filenames that do not exceed the
> > shell command line limit, and do that enough times to get through all
> > the filenames.
> 
> Thanks for that Alan. I wasnt 100% sure I understood the man page, and that
> issue could definitely bite if you weren't aware!

It bit me many times :-)

If you know about it already, the man page of course makes perfect sense. 
Such a pity it's not totally clear to those who don;t know about it already.


-- 
alan dot mckinnon at gmail dot com