RUBYOPT -S RuntimeError

ruby-talk
1

I'm confused.

On Windows7, Ruby 1.9.3

I do : ruby -S script.rb
and it works correctly, and searches the PATH variable

However, if I do :
set RUBYOPT=-S
ruby script.rb
=>ruby: invalid switch in RUBYOPT: -S (RuntimeError)

What am I missing ?

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2

Same behaviour on 1.8.6 on HPUX.

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3

So, in ruby's man page, I see the following:

RUBYOPT Additional Ruby options.

                     e.g.
                           RUBYOPT="-w -Ke"

                     Note that RUBYOPT can contain only -d, -E, -I, -K, -r, -T, -U, -v, -w, -W, --debug,
                     --disable-FEATURE and --enable-FEATURE.

It doesn't look as though RUBYOPT works with -S

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On Jul 4, 2013, at 4:21 PM, Tadeusz Bochan <lists@ruby-forum.com> wrote:

I'm confused.

On Windows7, Ruby 1.9.3

I do : ruby -S script.rb
and it works correctly, and searches the PATH variable

However, if I do :
set RUBYOPT=-S
ruby script.rb
=>ruby: invalid switch in RUBYOPT: -S (RuntimeError)

What am I missing ?

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Posted via http://www.ruby-forum.com/\.

4

Thanks for that.
I managed to find that reference when I googled for an updated version
of the man pages. It was difficult to find unless you included "man
page" in the search.

In the Programming Ruby book, it only says that option -S (among others)
is not allowed if $SAFE >= 1

I guess that it makes sense not to have -S in a variable.

Regards

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