From: Joel Pearson <lists@...>
Date: 2013-02-14T00:28:01+09:00
Subject: Re: Ruby command line options s and S

-s and -S are not related to each other.

http://www.ruby-doc.org/docs/ProgrammingRuby/html/rubyworld.html

-S
' Looks for the program file using RUBYPATH or PATH environment 
variable.

-s
' Any command line switches found after the program filename, but before 
any filename arguments or before a --, are removed from ARGV and set to 
a global variable named for the switch. In the following example, the 
effect of this would be to set the variable $opt to ``electric''.

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