How to a copy a file ?

[Florent 'flure' C.]

Hello

I'm searching a portable way of copying a file from one directory to
another in ruby. Of course I could open a file for reading, another for
writing, and copy byte per byte, but is there another way ? Or am I
missing something ?

Thanks.

 

[Simon Strandgaard]

I'm searching a portable way of copying a file from one directory to
another in ruby. Of course I could open a file for reading, another for
writing, and copy byte per byte, but is there another way ? Or am I
missing something ?

require 'fileutils'
# have a look at
FileUtils.cp

 

[Florent 'flure' C.]

Le Mon, 17 May 2004 23:53:04 +0900, Simon Strandgaard a écrit :

require 'fileutils'
# have a look at
FileUtils.cp

Ok, thanks
So I was missing something ; the FileUtils class isn't described in the
Pragmatic Programmer's Guide

 

[Simon Strandgaard]

Le Mon, 17 May 2004 23:53:04 +0900, Simon Strandgaard a écrit :


Ok, thanks
So I was missing something ; the FileUtils class isn't described in the
Pragmatic Programmer's Guide

The pickaxe book is unfortunatly quite old.


The RI is a commandline reference tool.. with all the goodies from pickaxe,
where everything is uptodate.

http://raa.ruby-lang.org/project/ri/


For instance

server> ri FileUtils.cp
----------------------------------------------------------- FileUtils#cp
cp(src, dest, options = {})
------------------------------------------------------------------------
Options: preserve noop verbose

Copies a file +src+ to +dest+. If +dest+ is a directory, copies
+src+ to +dest/src+.

If +src+ is a list of files, then +dest+ must be a directory.

FileUtils.cp 'eval.c', 'eval.c.org'
FileUtils.cp %w(cgi.rb complex.rb date.rb), '/usr/lib/ruby/1.6'
FileUtils.cp %w(cgi.rb complex.rb date.rb), '/usr/lib/ruby/1.6', :verbose => true


(also known as copy)
server>

 

[Lloyd Zusman]

[ ... ]

The pickaxe book is unfortunatly quite old.


The RI is a commandline reference tool.. with all the goodies from pickaxe,
where everything is uptodate.

http://raa.ruby-lang.org/project/ri/


For instance

server> ri FileUtils.cp

[ ... etc. ... ]

This sounds like a great tool. I downloaded it and I followed the
installation instructions, with the following result:

% ruby install.rb
install.rb:46:in `=~': type mismatch: String given (TypeError)
from install.rb:46

This is with the following ruby version:

ruby 1.9.0 (2004-04-19) [i386-freebsd4.0]

Perhaps ri is a bit out of date, as well?

 

[Gavin Sinclair]

The pickaxe book is unfortunatly quite old.

The RI is a commandline reference tool.. with all the goodies from pickaxe,
where everything is uptodate.

http://raa.ruby-lang.org/project/ri/

That particular project is also old. Downloading it will not inform
you about FileUtils.

'ri' is now part of Ruby. See

http://www.rubygarden.org/ruby?NextGenerationRi

for more information, and let me know if there's anything missing.

Cheers,
Gavin