From: Gennady <gfb@...>
Date: 2003-03-12T04:48:55+09:00
Subject: Re: when a ruby script gets arguments passed to it.....

Global aray ARGV -- contains command line parameters. 
GetoptLong -- parses options, a.l.a shell's getopts, but better (search 
http://www.ruby-doc.org/docs/ProgrammingRuby/html/lib_standard.html 
for GetoptLong description)

Gennady.

----- Original Message ----- 
From: "Greg Banschbach" <glbny@yahoo.com>
To: "ruby-talk ML" <ruby-talk@ruby-lang.org>
Sent: Tuesday, March 11, 2003 11:36 AM
Subject: when a ruby script gets arguments passed to it.....


> Dear All,
>  I was wondering what kinds of command line parsing I
> can do.   I mean, if I have a script foo.rb and I
> type:
> 
>   ./foo  -c "comment string" -t type -o option <enter>
> 
> OR I type 
> 
>   ./foo  -c"comment string" -ttype -ooption <enter>
> 
>  in a "vanilla" ruby script, will it be like "vanilla"
> bourne shell options  ie:  the -c would be the $1 
> "comment string" would be $2....  and so on. 
> 
> What is the "vanilla" method, and what is the
> "smarter" way to parse it.  In the bourne shell, I can
> use getopts but I can't handle if the person omits the
> space between arguments [ perhaps I need a patch ].
> Anyway,  I want to setup an environment and then run a
> further command with arguments that I figured out.   
> ie 
>    foo.rb  -c "test comment" -d pgroup1 <enter>
>  
> results in   lp -t "test comment" -d printer2 
> 
> or results in lp -t "test comment" -d fax1 
> 
> based on other command line or environment. 
> 
> 
> Thanks very much in advance !
> 
> Greg
> 
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