euid
Process.euid -> aFixnum
Returns the effective user id for this process.
process.euid » 501

euid=
Process.euid= aFixnum
Sets the effective user id for this process. Not available on all platforms.

exit!
Process.exit!( aFixnum=-1 )
Exits the process immediately. No exit handlers are run. aFixnum is returned to the underlying system as the exit status.

Process.exit!(0)

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