ruby way to enumerate users

[Robert K.]

Hi,
exists there a preferred ruby way to enumerate the
users names and directories?


especially on linux

 

[Robert Klemme]

Hi,
exists there a preferred ruby way to enumerate the
users names and directories?


especially on linux

Maybe something like this

ruby -naF: -e 'printf "%s\t%s\n", $F[0], $F[5]' /etc/passwd

robert

 

[Robert Klemme]

Hi,
exists there a preferred ruby way to enumerate the
users names and directories?


especially on linux

Maybe something like this

ruby -naF: -e 'printf "%s\t%s\n", $F[0], $F[5]' /etc/passwd

robert

 

[Robert K.]

Maybe something like this

ruby -naF: -e 'printf "%s\t%s\n", $F[0], $F[5]' /etc/passwd

Is this allways applicable? For example in an NIS+ env
- that's why I'm asking.



THX

 

[Robert K.]

I don't see any such thing in the standard library, RAA, or Ruby Forge;
maybe I'm just not looking in the right place, or maybe you have just
discovered your first module project!

Others: Is this the case?
Do I have to or may I develope that module?

 

[Gavin Sinclair]

Maybe something like this

ruby -naF: -e 'printf "%s\t%s\n", $F[0], $F[5]' /etc/passwd

Is this always applicable? For example in an NIS+ env
- that's why I'm asking.

Definitely not. NIS, NIS+, NetInfo, non-UNIX POSIX environments, . . .
all sorts of different places the info could be. What is needed is a
Ruby interface to the getpwent() family of system calls.
I don't see any such thing in the standard library, RAA, or Ruby Forge;
maybe I'm just not looking in the right place, or maybe you have just
discovered your first module project!

require 'etc'

(Should be in PickAxe, definitely in Nutshell.)

Gavin

 

[Eric Sunshine]

Okay, so enumerating users is easy enough.
require 'etc'
class Users
include Etc
include Enumerable
def each
setpwent
while pw = getpwent
yield pw
end
endpwent
end
end
Users.new.each { |u| puts u.name }

Simpler:

require 'etc'
class Users
include Etc
include Enumerable
alias :each asswd
public :each
end

Users.new.each { |u| puts u.name }

 

[Daniel Berger]

Simpler:

require 'etc'
class Users
include Etc
include Enumerable
alias :each asswd
public :each
end

Users.new.each { |u| puts u.name }

Apparently my earlier message got lost. There is no need to wrap this
with the etc module.

require "etc"
Etc.passwd{ |s|
p s.name
p s.dir
}

This is documented in the Nutshell book and at
http://www.rubygarden.org/ruby?ProgrammingRubyTwo/Etc

Regards,

Dan

 

[KONTRA Gergely]

This is documented in the Nutshell book and at
http://www.rubygarden.org/ruby?ProgrammingRubyTwo/Etc

BTW how can I read this book *offline*?

Gergo

 

[Rove Monteux]

Something like Httrack will do the trick.

http://www.theopenidea.org/tikiwiki/tiki-index.php?page=HTTrack


Cheers

Rove Monteux