[ruby-core:55573] [ruby-trunk - Bug #8550] On Windows Process.spawn 'command', 'arg1', 'arg2', ... evals the arguments

Issue #8550 has been updated by luislavena (Luis Lavena).


Hello,

On Windows, 'echo' is not an external command, is part of cmd.exe internal commands, like cd and others.
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Bug #8550: On Windows Process.spawn 'command', 'arg1', 'arg2', ... evals the arguments
https://bugs.ruby-lang.org/issues/8550#change-40066

Author: mdesantis (Maurizio De Santis)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 2.0.0p195 (2013-05-14) [x64-mingw32]
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN


=begin
Environment: ruby 2.0.0p195 (2013-05-14) [x64-mingw32] (RubyInstaller with DevKit) on Windows 7 64bit

According to the Process.spawn documentation, the syntax 'cmdname, arg1, ...' doesn't involve the shell. Indeed, on Unix this is true: ((%Process.spawn 'echo', '$PATH'%)) prints '$PATH'.

But on Windows the behaviour is different: executing ((%Process.spawn 'echo', '%Path%'%)) prints the contents of the Path environment variable.

I think the behaviour should be the same on the different OSes; at least, if it is not possible, the documentation should point it out.
=end


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