up vote 38 down vote favorite
38

What handy Mac OS X features do you know about that are poorly known?

I'll post a couple I'd like to share.

link|flag

migrated from serverfault.com

locked by random Aug 20 at 4:18

37 Answers

1 2
up vote 30 down vote

You can tell at a glance when a document needs saving. A black dot appears inside the red Close Window button.

alt text

link|flag
4  
As a new mac user, I was wondering what this was. Thanks. – swilliams Aug 20 '09 at 14:31
2  
I've been using OS X for almost 5 years and I never even noticed the dot. – GameFreak Oct 13 '09 at 22:40
show 1 more comment
up vote 30 down vote

Shift+Ctrl+Eject turns off the display(s).

link|flag
1  
(Though one cannot edit comments; one can delete them and repost...) – Arjan Nov 15 '09 at 16:46
show 6 more comments
up vote 21 down vote

When you have the Save File or Open File dialogue open in Finder, press the / key and you'll get a dialog to type in a path.

link|flag
4  
Apple+Shift+G does this, too. – ceejayoz May 30 '09 at 4:01
show 1 more comment
up vote 15 down vote

You can use Spotlight from the command line using "mdfind".

link|flag
2  
mdfind will also look in system'ish file, like files in ~/Library/Preferences/ (which are ignored by the GUI Spotlight search) – dbr Jul 30 '09 at 16:10
show 1 more comment
up vote 14 down vote

While lots of Mac users know you can take a screengrab by using Cmd+Shift+3 (whole screen) or Cmd+Shift+4, not so many know you can save one directly to the clipboard using Cmd+Ctrl+Shift+3.

link|flag
9  
Also, with Cmd+Shift+4, you can select just one Window by tapping the space bar. – username May 30 '09 at 10:07
up vote 13 down vote

Many OSX dialogs accept emacs keystrokes for navigation, give these a try in the address bar of your browser:

ctrl-a - put cursor at beginning of line
ctrl-e - go to end of line
ctrl-w - delete the word to the left of the cursor
ctrl-k - delete everything to the right of the cursor
ctrl-u - delete everything on the current line

These commands also work in terminal (along with many others) and after some use, you'll quickly wonder why you spent so much time navigating around without them.

link|flag
show 2 more comments
up vote 12 down vote

A lot of the Universal Access features are ignored because people think they're for specific handicaps, but some of them are pretty useful for anyone. My favorite, and I'm pretty sure it's enabled by default, is to use Ctrl+Mousewheel to zoom in and out.

link|flag
2  
I do this all the time to show my partner something when she is sitting ~5m away :) – Nippysaurus Aug 6 '09 at 6:38
show 1 more comment
up vote 10 down vote

There's a hidden System Preference Pane that lets you customize settings for decompressing archives located in: "/System/Library/CoreServices/Archive Utility.app/Contents/Resources/Archives.prefPane"

Similarly, there's Disk Image Pref Pane tucked away here: "/System/Library/PrivateFrameworks/DiskImages.framework/Versions/A/Resources/DiskImages.prefPane"

link|flag
5  
Useful for the delete archives after uncompressing option. – Rich Bradshaw May 30 '09 at 8:14
2  
DiskImages.prefPane is gone in Snow Leopard. That functionality has moved to Disk Utility preferences. (That's probably where it belonged in the first place — no need for a preference pane just for that.) The Archives.prefPane still exists, though... – Quinn Taylor Aug 6 '09 at 6:02
up vote 10 down vote

Control-click on the title (the current location) in the Finder to bring up a menu that allows you to select the parent folders.

link|flag
4  
+1 Also, many people don't realize you can drag and drop the little file icon in the titlebar, just like any other. You just need to click and hold a few seconds first. – username May 30 '09 at 9:17
1  
dragging the titlebar icon in Finder does not require any full seconds worth of delay. It's close enough to a few milliseconds that I can't quite measure it. – dlamblin Aug 1 '09 at 14:39
show 2 more comments
up vote 9 down vote

At the Login Window, type ">console" to exit to command prompt. Link

link|flag
2  
That link doesn't make it clear if it's really "single user mode", or just a non-graphic login. – Paul Tomblin May 30 '09 at 1:39
1  
Note that sometimes you just get a black display and do not see the initial prompt that says, "Login:", but you can type your username and press enter, and will then be queried for your password – Clinton Blackmore May 30 '09 at 12:25
show 2 more comments
up vote 9 down vote

There's some menubar extras hiding in: "/System/Library/CoreServices/Menu Extras/"

link|flag
2  
How to add them: methodshop.com/gadgets/tutorials/osx-menuextras/index.shtml [but, in short, open the directory and double-click on them.] – Clinton Blackmore Aug 4 '09 at 18:51
show 3 more comments
up vote 8 down vote

Hold Opt+Cmd and click an app in the Dock to show that app and hide all others.

link|flag
show 2 more comments
up vote 8 down vote

While in Terminal, execute "open ." to open the current location (path) in Finder.

link|flag
1  
open -a Safari will launch Safari, open -a TextMate somefile.txt will open somefile.txt with TextMate – dbr Jul 30 '09 at 16:04
show 2 more comments
up vote 7 down vote

Holding Cmd while clicking often reveals (opens Finder and selects) instead of opening. E.g. Cmd+clicking a Spotlight search result, or a Stacks folder, or a file in an expanded Stacks folder.

link|flag
show 1 more comment
up vote 6 down vote

My favorite, least known keyboard shortcut:

Option + Shift + Volume Up/Down will increase/decrease your volume by 1/4th of the normal amount. (Total of 64 increments)

http://grab.by/2v2M

Also, Shift + Any volume button will silently perform the action.

link|flag
show 1 more comment
up vote 6 down vote

While command-tabbing between applications (and still holding down the command key) there are a few handy shortcuts...

  • H will hide the selected application
  • Q will quit the selected application
  • ← and → move the selection
  • ↑ or ↓ switch to Exposé on the selected application
  • Just as Tab goes right, Shift-Tab and tilde (~) go left
  • Moving the mouse over the switcher moves the selection
  • The mouse scrollwheel will also move the selection
link|flag
up vote 5 down vote

Force Quit an application: hold option key down when you click on an application in the dock.

link|flag
show 3 more comments
up vote 5 down vote

The mac comes with a graphing application called "Grapher". Nice GUI.

link|flag
2  
The Graphing Calculator v1 Story is even better though: nucalc.com/Story – username May 30 '09 at 15:57
up vote 5 down vote

Ctrl+Option+Command+8 will invert the color of your screen. On my old powerbook it switched it to b/w too, but the newer hardware/software keeps somewhat of the color.

link|flag
show 1 more comment
up vote 4 down vote

cmd-option-eject instantly puts your mac to sleep

link|flag
up vote 4 down vote

When you have a document open, the icon at the top of the window is more than just a picture. You can file most documents in a different folder by dragging their icon from the top of the window into a Finder window. Unfortunately there are some major apps like Microsoft Office 2004 where this doesn't work

link|flag
show 1 more comment
up vote 4 down vote

Option + maximize button for when you cant see the lower corner of your app(itunes especially)

link|flag
show 2 more comments
up vote 4 down vote

the services menu and the dictionary. you can type dictionary words into spotlight, or highlight a word & go to Application-->Services-->Dictionary

Just like in NextStep Days!!

link|flag
show 2 more comments
up vote 4 down vote

on the command line, open path/to/some/file opens the file in its associated application. Very handy also for directories (even if hidden).

edit: As "Antony Perkov" says in the (hidden) comment hereafter: "You can also use "open -a application file" to open the file with a specific application."

link|flag
show 1 more comment
up vote 4 down vote

In each textfield of Cocoa Application (i.e., Safari, Mail, ...), you can call the Spelling and Grammar checker with :

Command + Shift + . (easy to remember : cmd + :)

link|flag
up vote 3 down vote

You can use the Script Editor "Get Result of AppleScript" service to execute shell commands most places you can put text.

E.g. if you type:

do shell script "ls -l /"

Select it and hit cmd-shift-8 (i.e. cmd-*) - which is the shortcut for the "Get Result of Applescript" Service it will run the "ls -l /" command and put the output where the "do shell script..." text was.

I often find this useful when generating documentation.

There used to be a Service from a 3rd party developer that let you do just that without even needing the "do shell script", but I've not been able to locate it. Love to hear about it if you know where to find that Service.

There are some caveats with the AppleScript do shell script command itself - you can see them here: http://developer.apple.com/technotes/tn2002/tn2065.html

link|flag
up vote 3 down vote

When dragging from one Finder window to another:

  • with no modifiers, you'll move the file [provided source and destination are on the same volume].
  • hold down Option to copy the file. [You'll see a big green plus cursor.]
  • hold down Command-Option to make an Alias (or shortcut). [The cursor will be a curved arrow pointing backwards.]

I made a folder called "Shortcuts" and put Aliases to folders I work with all the time, and put it on the sidebar in my Finder and as a folder on the Dock.

link|flag
show 2 more comments
up vote 3 down vote

If you've got a bunch of windows open in Finder, holding down the Option key when clicking the close button on one window will close all of the windows.

link|flag
show 3 more comments
up vote 3 down vote
  • Ctrl + mouse scroll wheel: Zoom in/out (Nice when doing CSS/gfx or when Flash videos don't support fullscreen)
  • Cmd-D in Save/File-dialogue: Go to Desktop
  • Type open . in Terminal: open current folder in Finder
  • Hold Cmd while dragging a window: Drag it without bringing it to front
  • Cmd-click on title in most document-based windows (inc Finder): Show drop down with path tree from here to root
  • Hold Opt while resizing the dock: Snap to predefined icon sizes (less on-the-fly rescaling work I guess)
  • Ctrl-Cmd-D with the mouse cursor over a word in Safari: Get a quick in-browser dictionary lookup
  • Cmd-drag the little icons in the menu bar: rearrange them (Not spotlight though)
  • Cmd-drag standard tool icons in windows: rearrange them
  • Click-hold on the little icon in Finder window title for ~1sec and then drag to Terminal: Pastes the absolute path of that folder. (Very useful for cd to/some/folder)
  • Cmd-Opt-I after selecting multiple items in Finder: Get up one window with accumulated information
  • Click on any menu to make it show, then hold different keys like Cmd, Ctrl etc: Show alternative commands (for instance try Finder › File and then hold Opt or Shift or Ctrl)

Edit:

Oh yeah, just gotta do this edit, as you can seriously not live without these:

  • Up/Down arrow in Finder: select next/prev folder/item
  • Cmd-Down arrow Finder: Go into folder or open item (Hold Opt to hide 'old' window if in minimized mode.)
  • Cmd-Up arrow in Finder: Open parent folder (hold Opt to hide 'old' window if in minimized mode.)
  • Cmd-1 or 2 or 3 in Finder: Switch view mode
  • Left/Right arrow in Finder: Expand/Contract folder (when i view mode 2)
link|flag
show 1 more comment
up vote 3 down vote

You can drop a file in Open and Save dialogs to change the current directory.

Very useful if you already have a Finder window displaying where you want to open/save.

link|flag
1 2

Not the answer you're looking for? Browse other questions tagged or ask your own question.