Open command verbose mode

Hi all
is there a way to get the open command to show the actual command it calls to open files.
example:
open somefile.pdf ... it launches Preview,
I want to be able to see the actual command and any other arguments it uses.
prysm_1

WZZZ wrote:
For an application, you will need to find the executable in the package. For example (as Kappy said "usually /Contents/MacOS/appname") for Console.app, it will be
/Applications/Utilities/Console.app/Contents/MacOS/Console
yup, I know this already, my questions was what are the exact arguments "open" calls to do what it does.
man open, did not show anything obvious.
example
open file.sparseimage = hdiutil attach file.sparseimage???
_assuming_ example above is correct, when given a sparseimage file open calls by default hdiutil with an argument "attach" and the file itself.

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Hi, Andy your replies are really helpful. I did tried your method and also followed the link http://www.oreillynet.com/pub/h/348
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I have an iMac 24", just over 2 years old running OS X v10.5 (Leopard). Mighty Mouse and bluetooth keyboard, no peripherals.
It slowed enormously over the last few weeks and has now ceased to boot.
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Disconnect, test peripheral devices and network cables - done - de-powered and rebooted. No difference.
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Remove third-party RAM and internal hardware – not applicable.
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Perform an Erase and Install installation of Mac OS X as a last resort – how would I do this when I cannot boot the device?
To me the problem looks like a HDD failure. I had windows (dual boot) professionally installed when I bought the iMac and since the Windows boot option is also not visible (startup manager itself does not work) I suspect the system can’t find bootable media because the HDD isn’t spinning.
An OS corruption would generally affect one or the other but presumably not both Operating Systems simultaneously.
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Thanks for the response,
I bought the iMac new, 17th Jan 2010, all receipts intact but no extended warrenty. I declined the Applecare Plan for two reasons.
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(2) The incumbent EU regulations are quite fair in so much as legislation dictates electrical goods should be manufactured to function for a 'reasonable' lifetime. I would be morally uncomfortable paying for rights I theoretically already have.
I triple checked on the OS X disks you mentioned but no joy. Unusual as it may be, the box has not been used and it's contents reflect the day of purchase.
I'm happy to order the OS X v10.5 DVD and attempt a boot to the disk utility, I don't mind risking a few bucks on a potential fix. I'll need to figure out where to order the disk, the call centre is closed ATM so watch this space.
What I'd really be interested in is; (a) is there a known diagnostic routine to determine the HDD functionality and (b) it is possible to replace/upgrade the HDD? This for me is where the iMac loses ground against a conventional PC in terms of motherboard/component access. It's far superior from an asthaetics perspective while things are running smoothly and the OS is great but the first sign of a hardware malfunction and there seems little or no scope to self-medicate the device.
The disk has around 40-60 GB free space.
I don't have a second Mac, nor any friends or family with a Mac to 'borrow' for the disk utility test you mentioned. I'll hunt around this afternoon/week but my instinct tells me finding a locally accessable Mac running 3 yr old OS X might not be possible. Again, watch this space, I'll post any further developments.
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Many Thanks
Ryan

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http://www.oreillynet.com/pub/h/348
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3. Typed the admin. access password (as defined by you, the administrator). Pressed Return key.
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* Verbose Mode OFF!
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Hi,
My Mac Mini seems to be sarting up in Verbose Mode (black background with white type). Any ideas why this is happening? and how do I stop it?
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also download and install onyx
http://www.titanium.free.fr/pgs2/english/download.html
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http://docs.info.apple.com/article.html?artnum=2238
http://docs.info.apple.com/article.html?artnum=303319
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I tried using the disk utility on the grey disks, but
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is an error when I try.
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To reset the PRAM:
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CANNOT_START-UP: Stars in Command-Line-Mode: "Deallocation of a pointer not

HELLO EVERYONE, PLEASE CAN YOU HELP ME...
My computer: Mac OS X (10.3.9) had froze, couldn't force quit..and i forced started it by holding the power button. Restarted it, came on: the grey-screen and apple, spinning-gear...satayed like that long time then it went into Command-Line_Mode.
Darvin,
UserName:
Password:
I enterded UserName and Password, but could not start in normal ways.
Now when I start-up the computer, Command-Line opens with only:
:/root#
and a curser-point.
I have been reading all the leads that I found in the discussions, tryed most of the suggestions: fsck (/sbin/fsck -fy), Safe-Mode (didn't start in), couldn't start up from CD.
COMMAND-LINE (at one time it said like this):
*God boot device= IOService:/MacRISCZPE?pci@f2000000/AppleMacRiscPCI/*
*mac-io@17/AppleKeyLargo/ata-4@1f000/KeylargoATA/ATADeviceNum@0/IOATABlockStorag eDrive/IOATABlockStorageDevice/IOBlockStorageDriver/ST340810A.Media/IOAppleParti tionScheme/MacOS@5 BSD root: diskOs5, Major 14, minor 5*
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*at an other time after using fsck*
Command-Line-Interface:
*:root#/sbin/fsck -fy*
**/dev/rdiskOsF
*Root file System*
*Checking HFS Plus volume.*
*Checking Extents Overflow file.*
*Checking Catalog file.*
*Keys out of order*
*(4, 8874)*
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WHAT Should i do?
If nothing works, could i start-up from OS 9.2.2? (Both Systems OSX and OS_9.2.2 were installed)
If the B-tree is corrupt, does it being shared by both OSX and OS_9.2.2?
THANK YOU

Hi Kappy,
Thank you for taking an interest.
I already tryed to start_up from CD, but it either didn't started-up
or it started still in Command-Line-Mode.
Put the CD in the tray, startedUP with the C_Key Held.
It took a little longer and seemed it was going to start from CD but went into CommanLine again.
but instead of
:/root#
it said something else, something like:
2e_sh.. (Something! i could redo it and write it down here if it will help)
Other times i tryed to bootUP from CD by holding-down the Option-Key and saw the install-CD icon next to
OSX-Icon, so i chose the CD and hit the Straight-ARROW-Icon to start up from the CD, but again it fell
into CommandLine.
If i try the Target-Disk-Mode with a healty-Mac, could i be able to see my HD. Then i can switch to
OS_9.2.2 which i spose is healty because i was using OS_10.3 when this problem happened. And the way
i think, if the B-tree Catalog is not being shared by both Systems, if each have its own one, then the
OSX's B-tree Catalog have been corrupted, not OS9's, and so if i could change the start-up-system(Disk)
somehow, i could be able to start the computer with OS_9.2.2 running. Both systems were installed,
and i was switching back and forth between them. Then i can fix my computer by, at least, starting
to throw away some of the junk and so making some free-space.
I had read that HD should not be full more than 85%. I had 2.5GB space left out of 40GB.
But if there is a risk that things like this could happen because your HD is too full;
why arn't they (Apple) fix this, buy, at least, showing as if you HD is full before it gets
too full to leave a safety net for the B-tree Catalog files evidently that need to be written
in continuous blocks on the HD.
So thank you again, and keep me posted if you might think something else could fix my computer. I need
this computer.
thanks

How to permanently boot up in verbose mode?

Hi,
I want to always boot up OS X Mavericks (10.9.2) in verbose mode (debug mode) as I pressed Cmd+V everytime.
I remember an old command which I used on Snow Leopard for doing this:
« sudo nvram boot-args="-v" »
but I don't know if it's still valid on Mavericks!!
The command « nvram -p » works and doesn't show any "-v" verbalization in the "boot-args" section, so I'm currently thinking my command is still valid (it does still show other commands, though).
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Thanks in advance,
Tyrexionibus
Message was edited by: Tyrexionibus

Restart the computer. At the chime press and hold down the SHIFT key until you see the spinning gear below the Apple Logo. You should also see a progress bar appear. Booting into Safe Mode takes much longer than a normal startup.

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Using Safe Mode. What happens with a normal boot - same thing? If so then your startup volume needs to be reformatted and you need to reinstall OS X.
Install or Reinstall OS X from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
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2. After DU loads select your startup volume (usually Macintosh HD) from the
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(100118)

Boots up almost like verbose mode.

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When I restart my G4 Server, it looks like it is starting like normal, shows the blue startup screen and says Mac Server is starting up, but when the bar reaches the end, it briefly goes to an all blue screen and then moves to a black screen with white text(verbose mode I think).
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Hi Dan-Cherokee:
What happens if you boot from the installer disk?
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