How to umount and eject cdrom on MacOSX from Perl?

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

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Re: How to umount and eject cdrom on MacOSX from Perl? by Thilosophy (Curate) on Feb 10, 2005 at 11:02 UTC
Interesting question. I do not really know. Just to get the ball rolling: You could use AppleScript to tell the Finder to eject the CD. Call this AppleScript from Perl using the "osascript" command line shell (or using Mac::Glue). Or the 'disktool' command: `disktool -e disk2`. You need to know the name of the disk, however (disktool can also list the disks currently mounted).	[reply] [d/l]
Re: How to umount and eject cdrom on MacOSX from Perl? by mkirank (Chaplain) on Feb 10, 2005 at 12:19 UTC
This might be of some help	[reply]
Re: How to umount and eject cdrom on MacOSX from Perl? by ambrus (Abbot) on Feb 10, 2005 at 09:13 UTC
See also thread opening the cd rom.	[reply]
Re: How to umount and eject cdrom on MacOSX from Perl? by Anonymous Monk on Feb 10, 2005 at 14:05 UTC
man drutil $ret = `drutil tray eject`; # if you have only one tray	[reply]
Re: How to umount and eject cdrom on MacOSX from Perl? by Anonymous Monk on Feb 10, 2005 at 11:47 UTC
Thanks for arriving answers! And is 'umount' utility (non syscall!) at all exists on macosx? Can I call it at least to umount cdrom (and ask user to press the eject button manually)? Can I invoke it like this: `system("umount $some_drom_mountpoint");` - is it always in $PATH; do all users have the right to invoke it? Will it succeed if Finder window is opened for CDROM folder?	[reply] [d/l]
Re^2: How to umount and eject cdrom on MacOSX from Perl? by eieio (Pilgrim) on Feb 10, 2005 at 14:19 UTC
I believe that the umount command exists on all versions of Mac OS X. However, it will not unmount a mounted CDROM volume but, rather, returns a "Operation not permitted" error. A better solution is the one offered by the AM below, use the drutil command. This command should unmount the mounted CDROM volume and eject the CDROM. It doesn't matter if a Finder window is currently displaying the contents of the CDROM volumes. Read the drutil man page for dealing with multiple CDROM drives.	[reply]