exec() would be more useful if it really exec()ed
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Key: JRUBY-5082
URL: http://jira.codehaus.org/browse/JRUBY-5082
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Affects Versions: JRuby 1.5.2
Environment: Mac OS X Snow Leopard running JRuby via RVM
Reporter: James Edward Gray II
Priority: Minor
exec() doesn't actually replace the current process as seen by this code:
p $$
exec('echo $$')
This causes issues when working with things like PID files, since they can
point to the wrong process.
I don't see the advantage of having this not work where it can, since I can
always run processes normally using system(), ``, IO.popen(), open3, etc.
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