Renaming multiple files

Renaming multiple files

[Andrei Zmievski]

How can I rename all files with one extension to another? For example,
all *.phtml files to *.php.

-Andrei

Some people try to achieve immortality through their work, others
through their children. I hope to achieve immortality by not dying.
-- Woody Allen

Re: Renaming multiple files

[Andre Pang]

On Sat, Jan 15, 2000 at 10:52:48AM -0600, Andrei Zmievski wrote:

> How can I rename all files with one extension to another? For example,
> all *.phtml files to *.php.

My (fairly dumb) solution:

for i in *.phtml; do mv $i $(basename $i .phtml).php; done

It does have the advantage of being fairly easy to remember and it'll work
on any shell.  (Well, if you change $(...) to `...`, anyway.)

I'm sure somebody here can come up with an answer that'll win some
obsfucated "How to rename all files with one extension to another" zsh
content :).


-- 
: Andre Pang <andrep@vjolnir.org> - Purruna Pty Ltd - ph# 0411.882299 :
:               #ozone - http://www.vjolnir.org/ozone/                :

Re: Renaming multiple files

[Andrei Zmievski]

On Sun, 16 Jan 2000, Andre Pang wrote:
> I'm sure somebody here can come up with an answer that'll win some
> obsfucated "How to rename all files with one extension to another" zsh
> content :).

That's what I needed. :)

-Andrei

The Heineken Uncertainty Principle:
  You can never be sure how many beers you had last night.

Re: Renaming multiple files

[Thomas Köhler]

On Sat, Jan 15, 2000 at 06:07:47PM +0100,
Andre Pang <andrep-ml@vjolnir.org> wrote:
> 
> On Sat, Jan 15, 2000 at 10:52:48AM -0600, Andrei Zmievski wrote:
> 
> > How can I rename all files with one extension to another? For example,
> > all *.phtml files to *.php.
> 
> My (fairly dumb) solution:
> 
> for i in *.phtml; do mv $i $(basename $i .phtml).php; done
>
> It does have the advantage of being fairly easy to remember and it'll work
> on any shell.  (Well, if you change $(...) to `...`, anyway.)
> 
> I'm sure somebody here can come up with an answer that'll win some
> obsfucated "How to rename all files with one extension to another" zsh
> content :).

for i in *.phtml ; do mv $i ${i:r}.php ; done

Well, works with zsh - and is of course shorter, doesn't need basename
etc... :-)

jean-luc@picard (ttypts/5) ~> which basename
/bin/basename

-> No extra process, this starts to get really funny if you rename a few
thousand files at once :-)

Here's a test:
jean-luc@picard (ttypts/5) ~/test/zsh> for i in {1..1000} ;
do touch $i.phtml ; done

jean-luc@picard (ttypts/5) ~/test/zsh> time (for i in *.phtml;
 do mv $i $(basename $i .phtml).php; done)
( for i in *.phtml; do; mv $i $(basename $i .phtml).php; done )
 7,16s user 9,94s system 98% cpu 17,380 total

jean-luc@picard (ttypts/5) ~/test/zsh> time (for i in *.php;
do mv $i ${i:r}.phtml; done)     
( for i in *.php; do; mv $i ${i:r}.phtml; done )
 3,22s user 5,04s system 99% cpu 8,328 total

Hey, that's more than twice as fast ;-)

CU,
Thomas

-- 
 Thomas Köhler Email:   jean-luc@picard.franken.de   | LCARS - Linux for
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Re: Renaming multiple files

[Andy Spiegl]

> for i in *.phtml ; do mv $i ${i:r}.php ; done
Nifty.  But do you guys know mmv?
It's as easy as this:
 mmv '*.phtml' '#1.php'

> Well, works with zsh - and is of course shorter, doesn't need basename
> etc... :-)
dito. :-)

> jean-luc@picard (ttypts/5) ~/test/zsh> time (for i in *.php;
> do mv $i ${i:r}.phtml; done)     
> ( for i in *.php; do; mv $i ${i:r}.phtml; done )
>  3,22s user 5,04s system 99% cpu 8,328 total

eule:~/tmp>time mmv '*.phtml' '#1.php'
 0,03s user 0,46s system 100% cpu 0,487 total

What is 3,22 divided by 0,03?  :-)

Bye,
 Andy.

-- 
 E-Mail: Andy@spiegl.de     URL: http://andy.spiegl.de
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Re: Renaming multiple files

[Andrei Zmievski]

On Tue, 18 Jan 2000, Andy Spiegl wrote:
> > for i in *.phtml ; do mv $i ${i:r}.php ; done
> Nifty.  But do you guys know mmv?
> It's as easy as this:
>  mmv '*.phtml' '#1.php'

What is mmv?

-Andrei

Any sufficiently advanced bug is
indistinguishable from a feature.
                -- Rich Kulawiec

Re: Renaming multiple files (OT)

[Andy Spiegl]

[Sorry, a little off topic]

> What is mmv?
It's a free tool from Usenet and can be called as
 mmv, mcp, mad or mln

I installed it as a Debian Package.  You can get it (and the source) from
here:  http://www.debian.org/Packages/unstable/utils/mmv.html

And here's the README, or better Copyright:


This is the Debian GNU/Linux prepackaged version of mmv.

This package was put together by Michael Meskes <meskes@debian.org>,
from sources obtained from USENET.

Copyright (c) 1989 Vladimir Lanin

Mmv is freeware. That means that the entire package of software and
documentation is copyrighted, and may not be distributed with any
modifications or for any charge (without the author's explicit written
permission). Other than that, it may be used and distributed freely.

Vladimir Lanin
330 Wadsworth Ave, Apt 6F
New York, NY 10040

lanin@csd2.nyu.edu
...!cmcl2!csd2!lanin

However, Vladimir told me:

Michael,

This message is to serve as an announcement that I am changing the
copyright of mmv to GPL.

If this message is in any way insufficient to do so, please tell me what
I have to do. Please keep in mind that I do not have in hand either the
full GPL text or the source code of the last mmv release (oops).

If there is any other way that I can help out, please tell me.

Thanks,

Vladimir Lanin
vlad@brm.com

Thanks to Joost for getting into touch with him.

-------------

Hope that helps,
 Andy.

-- 
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 I've learned....                                                                  
  that the less time I have to work with, the more things I get done.

Re: Renaming multiple files

[Thomas Köhler]

On Tue, Jan 18, 2000 at 04:41:10PM +0100,
Andy Spiegl <zsh.Andy@spiegl.de> wrote:
> 
> > for i in *.phtml ; do mv $i ${i:r}.php ; done
> Nifty.  But do you guys know mmv?
> It's as easy as this:
>  mmv '*.phtml' '#1.php'

And, well, doesn't let zsh globbing work. Bad :-}

How do you do
for i in **/*.php(I) ; do mv $i ${i:r}.phtml ; done
with mmv?

[Of course mmv is faster as it only spawns one process instead of many]
[Let's try again with other means...
553 jean-luc@picard (ttypts/12) ~/test/zsh> zmodload files
554 jean-luc@picard (ttypts/12) ~/test/zsh> time (for i in *.php ;
do mv $i ${i:r}.phtml ; done )
( for i in *.php; do; mv $i ${i:r}.phtml; done )
0,09s user 0,61s system 94% cpu 0,739 total
We're in business again :-)]

> Bye,
>  Andy.

CU,
Thomas

-- 
 Thomas Köhler Email:   jean-luc@picard.franken.de   | LCARS - Linux for
     <><        WWW:  http://home.pages.de/~jeanluc/ | Computers on All
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Re: Renaming multiple files

[Andy Spiegl]

> How do you do
> for i in **/*.php(I) ; do mv $i ${i:r}.phtml ; done
> with mmv?
I'm not sure (haven't looked at the man page for a long time), but I
suppose you can't do it.  Anyway: zsh is always better. :-)

> 553 jean-luc@picard (ttypts/12) ~/test/zsh> zmodload files
What does that command mean?

> 554 jean-luc@picard (ttypts/12) ~/test/zsh> time (for i in *.php ;
> do mv $i ${i:r}.phtml ; done )
> ( for i in *.php; do; mv $i ${i:r}.phtml; done )
> 0,09s user 0,61s system 94% cpu 0,739 total
Wow, this one command really speeds it up that much.

Bye,
 Andy.

-- 
 E-Mail: Andy@spiegl.de     URL: http://andy.spiegl.de
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 USER, n.:  The word computer professionals use when they mean "idiot."
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Re: Renaming multiple files

[Zefram]

Andy Spiegl wrote:
>> 553 jean-luc@picard (ttypts/12) ~/test/zsh> zmodload files
>What does that command mean?

It loads the `files' module.  Modules generally add new capabilities to
zsh; this module provides some new builtin commands, among them `mv'.
The result is that, in the loop, the zsh process actually calls rename(),
rather than forking off a new process to exec /bin/mv.

-zefram

Re: Renaming multiple files

[Peter Stephenson]

Thomas K hler wrote:
> On Tue, Jan 18, 2000 at 04:41:10PM +0100,
> Andy Spiegl <zsh.Andy@spiegl.de> wrote:
> > 
> > > for i in *.phtml ; do mv $i ${i:r}.php ; done
> > Nifty.  But do you guys know mmv?
> > It's as easy as this:
> >  mmv '*.phtml' '#1.php'
> 
> And, well, doesn't let zsh globbing work. Bad :-}

I wrote a function zmv that does; it would work like this:
  zmv '(*).phtml' '$1.php'
(positional parameters match parentheses). The bad news is it only works
with the latest development version, not 3.1.6.  However, I'll add it to
Functions/Misc from now on (it was posted to zsh-workers a few of months
ago), and it'll appear in future versions. 

> How do you do
> for i in **/*.php(I) ; do mv $i ${i:r}.phtml ; done
> with mmv?

Actually, further bad news is that you can't do **/... with zmv yet, but
I expect that can be fixed.  I'll have a look sometime.

-- 
Peter Stephenson <pws@pwstephenson.fsnet.co.uk>