ruby安裝事宜

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首先到http://www.ruby-lang.org/en/20020102.html找到Downloadable Items的Install Ruby under Windows連結，點進去找到Download連結，之後下載ruby184-20.exe安裝。
到http://wxruby.rubyforge.org/wiki/wiki.pl下載wxruby-0.6.0-mswin.exe安裝，安裝時會彈出個訊息"Could not find Ruby installation. You must manually copy \wxruby.so' to (ruby-dir)\lib\ruby\site_ruby\1.8\i386-msvcrt\."，不理訊息繼續安裝，完成後照訊息做一次。

SCRIPT
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original link: http://civ2boss.weblogs.us/archives/2006/03/26/ruby-command-line-scripting/
ref: Ruby Command Line Scripting  In My Life.htm
file: rename.rb
function: rename file
state:
D:\Python24>ruby rename.rb
rename.rb:6: warning: parenthesize argument(s) for future version
hello world

D:\Python24>ruby -e rename.rb
-e:1: undefined local variable or method `rename' for main:Object (NameError)

SAMPLE
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original link: http://www.rubyist.net/~slagell/ruby/getstarted.html
% echo "puts 'hello world'" > hello.rb
edit hello.rb
~puts 'hello world'
% ruby hello.rb
hello world

% ruby -i.bak -pe 'sub "foo", "bar"' *.[ch]
#all C source and header files in the current working directory, backing up the original files with ".bak" appended: