[#397988] Help with sqlite3 please — Kaye Ng <lists@...>

I'm on Windows 7 Ultimate, 64-bit

18 messages 2012/08/03
[#397989] Re: Help with sqlite3 please — Chris Hulan <chris.hulan@...> 2012/08/03

sqlite is not ruby, so you should look for a sqlite group ;)

[#397990] Re: Help with sqlite3 please — Kaye Ng <lists@...> 2012/08/03

> However it looks like you have 'SQL' at the beginning of your CREATE

[#398031] Gem install or usage problem in shared environment — Tom Moulton <lists@...>

I am moving to a Westhost shared CPanel account and I am trying to set

17 messages 2012/08/04
[#398077] Re: Gem install or usage problem in shared environment — Tom Moulton <lists@...> 2012/08/06

I got a solution from WestHost and it may help others:

[#398086] Re: Gem install or usage problem in shared environment — Ryan Davis <ryand-ruby@...> 2012/08/07

[#398088] Re: Gem install or usage problem in shared environment — Tom Moulton <lists@...> 2012/08/07

Ryan Davis wrote in post #1071503:

[#398043] Redefining constants for a given instance only — "Andrea Dallera" <andrea@...>

Hello,=0A=0A=C2=A0 =C2=A0 let's say we have two empty classes:=0A=0Aclass=

9 messages 2012/08/05

[#398063] Join with ActiveRecord using non-standard schema — Tedi Roca <lists@...>

Hi,

13 messages 2012/08/06

[#398135] Help with database-related code pls — Kaye Ng <lists@...>

Hi guys! This is just a part of the code of a program that can load a

12 messages 2012/08/08

[#398190] How do you order your class methods? — masta Blasta <lists@...>

Just getting some layout ideas from other fellow devs.

11 messages 2012/08/10

[#398245] namespace instance methods? — John Doe <lists@...>

I have a large class with many instance methods that I want to

14 messages 2012/08/13

[#398287] Idea: def ... end returns the symbolized version of the newly-defined method, instead of nil — Peter <lumbergh@...>

This would allow useful syntax constructs such as this:

9 messages 2012/08/13

[#398362] case vs if-else — ajay paswan <lists@...>

Which one is faster?

20 messages 2012/08/16

[#398385] A Ruby class is never closed — Rubyist Rohit <lists@...>

Is it true that a Ruby class definition is never closed? Even after

18 messages 2012/08/16

[#398504] How to create an EXecutable file (Linux) — Fosiul Alam <lists@...>

Hi

13 messages 2012/08/22

[#398506] Save a file by clicking on a link — ajay paswan <lists@...>

I clicked a link to download a file using ruby, now I see the open-save

41 messages 2012/08/22

[#398641] force child threads run paralelly? — ajay paswan <lists@...>

I have created two child thread using main thread- child1 and child2.

19 messages 2012/08/28
[#398644] Re: force child threads run paralelly? — ajay paswan <lists@...> 2012/08/28

Ruby version:

[#398648] Re: force child threads run paralelly? — Tony Arcieri <tony.arcieri@...> 2012/08/28

On Tue, Aug 28, 2012 at 7:19 AM, ajay paswan <lists@ruby-forum.com> wrote:

[#398684] Can I do this with Ruby and sqlite alone? — Kaye Ng <lists@...>

Hi guys.

16 messages 2012/08/29

Strange line feed behavior with ping command.

From: "Antoine P." <lists@...>
Date: 2012-08-21 11:56:21 UTC
List: ruby-talk #398491
Hello,

While testing ruby to execute external commands, i'm having a strange
behavior with some commands.

To give an example, I have a simple script which is echoing an external
command result.

I observe different behavior

--- 1st test : DIR command ---

-code- (just a simple echo) :
    IO.popen("dir") do |f|
  while line =3D f.gets
    puts line;
  end
    end

-result- same as a regular dir executed as a commandline in windows
console :
  D:\test>d:\temp\ruby-1.9\bin\ruby.exe test_dir.rb
   Le volume dans le lecteur D s'appelle DONNEES
   Le num=C3=A9ro de s=C3=A9rie du volume est C083-B188

   R=C3=A9pertoire de D:\test

  21/08/2012  13:25    <REP>          .
  21/08/2012  13:25    <REP>          ..
  21/08/2012  13:22    <REP>          temp
  21/08/2012  13:24                84 test_dir.rb
  21/08/2012  13:25                95 test_ping.rb
                 2 fichier(s)              179 octets
                 3 R=C3=A9p(s)  13=C2=A0118=C2=A0869=C2=A0504 octets libr=
es

OK it works !


--- 2nd test : PING command ---

When I try to echo a simple ping localhost with the same script :
-code-
    IO.popen("ping localhost") do |f|
  while line =3D f.gets
    puts line;
  end
    end

-result- I have a different output with annoying added line feeds which
are not visible in a regular command line :
  D:\test>d:\temp\ruby-1.9\bin\ruby.exe test_ping.rb


  Envoi d'une requ=C3=AAte 'ping' sur PC43343 [127.0.0.1] avec 32 octets =
de
donn=C3=A9es=C2=A0:



  R=C3=A9ponse de 127.0.0.1=C2=A0: octets=3D32 temps<1ms TTL=3D128

  R=C3=A9ponse de 127.0.0.1=C2=A0: octets=3D32 temps<1ms TTL=3D128

  R=C3=A9ponse de 127.0.0.1=C2=A0: octets=3D32 temps<1ms TTL=3D128

  R=C3=A9ponse de 127.0.0.1=C2=A0: octets=3D32 temps<1ms TTL=3D128



  Statistiques Ping pour 127.0.0.1:

      Paquets=C2=A0: envoy=C3=A9s =3D 4, re=C3=A7us =3D 4, perdus =3D 0 (=
perte 0%),

  Dur=C3=A9e approximative des boucles en millisecondes :

      Minimum =3D 0ms, Maximum =3D 0ms, Moyenne =3D 0ms


Whereas a regular command line is more compact :
  D:\test>ping localhost

  Envoi d'une requ=C3=AAte 'ping' sur PC43343 [127.0.0.1] avec 32 octets =
de
donn=C3=A9es=C2=A0:

  R=C3=A9ponse de 127.0.0.1=C2=A0: octets=3D32 temps<1ms TTL=3D128
  R=C3=A9ponse de 127.0.0.1=C2=A0: octets=3D32 temps<1ms TTL=3D128
  R=C3=A9ponse de 127.0.0.1=C2=A0: octets=3D32 temps<1ms TTL=3D128
  R=C3=A9ponse de 127.0.0.1=C2=A0: octets=3D32 temps<1ms TTL=3D128

  Statistiques Ping pour 127.0.0.1:
      Paquets=C2=A0: envoy=C3=A9s =3D 4, re=C3=A7us =3D 4, perdus =3D 0 (=
perte 0%),
  Dur=C3=A9e approximative des boucles en millisecondes :
      Minimum =3D 0ms, Maximum =3D 0ms, Moyenne =3D 0ms

-analysis- :

I have indeed many successive "\n" linefeeds :
-code-
  output =3D IO.popen("ping localhost").readlines()
  print output
-result-
  ["\n", "\n", "Envoi d'une requ\x88te 'ping' sur PC43343 [127.0.0.1]
avec 32 oct
  ets de donn\x82es\xFF:\n", "\n", "\n", "\n", "R\x82ponse de
127.0.0.1\xFF: octet
  s=3D32 temps<1ms TTL=3D128\n", "\n", "R\x82ponse de 127.0.0.1\xFF:
octets=3D32 temps<1
  ms TTL=3D128\n", "\n", "R\x82ponse de 127.0.0.1\xFF: octets=3D32 temps<=
1ms
TTL=3D128\n
  ", "\n", "R\x82ponse de 127.0.0.1\xFF: octets=3D32 temps<1ms TTL=3D128\=
n",
"\n", "\n
  ", "\n", "Statistiques Ping pour 127.0.0.1:\n", "\n", "
Paquets\xFF: envoy\x8
  2s =3D 4, re\x87us =3D 4, perdus =3D 0 (perte 0%),\n", "\n", "Dur\x82e
approximative d
  es boucles en millisecondes :\n", "\n", "    Minimum =3D 0ms, Maximum =3D=

0ms, Moyen
  ne =3D 0ms\n", "\n"]


-notes-
  . i have the same behavior if i use puts or print to echo on stdout.
  . i have the same behavior too if i use other apis like popen2 /
popen3 (i tried many things even trying to change encoding mode but with
no success)
  . i'm using ruby 1.9 on window XP profesionnal french


If you have any idea to explain such a behavior and any suggested
solution, i would be grateful.
Note : as i'm evaluating ruby as a scripting tool to write some system
scripts which will manipulate lots of input / output of external
commands, I don't want to manipulate full output or line by line to
delete \n which is not a clean solution in my opinion - so solution MUST
be simple and easy :-) ?

thx by advance

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