On my Macbook Pro, whenever you press the power button it goes into sleep mode. How do I change this to do nothing?
You can control whether pressing the power button should put your mac to sleep or present a dialog with options (sleep/restart/shut-down) using the
pmset command. The following:
sudo pmset powerbutton 1
will put it to sleep right away (presumably your current setting) and changing
0 will present you with the dialog.
Pay attention to the fact that it's not a per-user setting, and changes the behaviour for all users. Something to keep in mind if you share the device with others. From the man page (explore it for other options):
All changes made through pmset are saved in a persistent preferences file (per-system, not per-user) at /Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
defaults write com.apple.loginwindow PowerButtonSleepsSystem -bool no
Is working for me on 10.9.5, and gives behavior very close to how the power button used to work for me on 10.6. Though there is a bit more of a delay, it's definitely not infuriating anymore.