问题
I would like to be able to track a file and see which process is touching that file. Is that possible? I know that I can see the list of open processes in activity monitor but I think it's happening to quickly for me to see it. The reason for this is I'm using a framework and I think the system version of the framework is being used instead of the debug version and I'd like to see which process is touching it.
回答1:
lsof will list open files, but it can be a bit awkward for momentary touches (eg, if the file isn't open when lsof runs, it doesn't show).
I think your best bet would be fernLightning's fseventer.app. It's "nagware", and allows you to watch (graphically) the fsevents API in real-time.
回答2:
That's simple: sudo fs_usage | grep [path_to_file]
回答3:
But I spent 2 minutes Googling and found your answer here.
$ lsof | grep [whatever]
Where [whatever] is replaced with the filename you're looking for. With this, you can see which program is desperately holding onto your about-to-be-trashed file. Once you exit that program, your trash will empty.
回答4:
Another option is Sloth. It's a free, open source GUI for LSOF that others have mentioned.
回答5:
The faster way is:
$ lsof [path_to_file]
This solution doesn't require the root password and gives you back the following, clear, result:
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
Finder 497 JR7 21r REG 1,2 246223 33241712 image.jpg
QuickLook 1007 JR7 txt REG 1,2 246223 33241712 image.jpg
来源：https://stackoverflow.com/questions/8317177/see-what-process-is-using-a-file-in-mac-os-x