From: "Ara.T.Howard" <Ara.T.Howard@...>
Date: 2004-01-15T17:06:37+09:00
Subject: (Process.wait2)[1]



my understanding was that Process.wait2[1] would be the child process
exit_status, so this is confusing:

  ~ > ls -e; echo $?
  ls: invalid option -- e
  Try `ls --help' for more information.
  1

  ~ > ruby -e 'fork{exec "ls -e"}; puts((Process.wait2)[1])'
  ls: invalid option -- e
  Try `ls --help' for more information.
  256

  ~ > ruby -e 'fork{exec "ls -e"}; puts((Process.wait2))'
  ls: invalid option -- e
  Try `ls --help' for more information.
  3388
  256

  ~ > ruby -e 'fork{exec "ls -e"}; p((Process.wait2))'
  ls: invalid option -- e
  Try `ls --help' for more information.
  [3399, #<Process::Status: pid=3399,exited(1)>]

obviously 256 is 1 << 8 and this is equivalent to $? - the exitstatus.  can
someone eplain what the lower byte is then?


-a
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