Can I tell what time an application was last opened?

Not by default. The command lastcomm and sa lets you see, what and when.

Before you can use this, create with sudo mkdir /var/account an folder.
With sudo touch /var/account/acct make the logfile. And you start the accounting with sudo accton /var/account/acct. To disable it, use only accton. This is temporally.

lastcomm create a long list. For a better overview, you can use a pipe, e.g.
lastcomm | less.

I believe Klaus is referring to the "More Info:" panel in the Get Info window, which does tell when the item was last opened.

In addition to the standard creation and modification times, Mac OS X does record the last accessed time for a file. I don't know of any way to show this information in the Finder, but in the terminal you can run the ls command with the -u flag to show the last accessed time instead of the modified time. Running "ls -ul /Applications" will show you when the applications were last launched. You can pipe the results through grep to just show when Mail was last launched "ls -ul /Applications | grep Mail".

Michael

Mac Pro Mac OS X (10.4.8)

I believe Klaus is referring to the "More Info:" panel in the Get Info window, which does tell when the item was last opened.

Yes he was!

If you don't trust other users that have access to your Mac, you should never give them access to your account.

Create a new non-admin account for guests to use, and never give out the password for your own user account. Set a screensaver password. When waking up the screen, your guests cannot get into your account but they can switch into the guest account.

You can also turn on FileVault to fully protect all of your data from snoopers.

Hope this helps.

If you click on the application icon and then go to
Get Info in the finder menu, it will tell you.

I believe it gives last modified as opposed to last opened.

Oops more research was req'd. I stand corrected. :~(

If you click on the application icon and then go to Get Info in the finder menu, it will tell you.

Look at HD> Applications, select app. in question, last opened date is there.

Louise Parrish