(Process.wait2)[1]

[Ara.T.Howard]

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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[Andrew Walrond]

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

see man 2 wait, and include/sys/wait.h

Andrew Walrond