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1500 questions
150
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12 answers

How to record both screen and sound with Quicktime on El Capitan?

I'm trying to record both what's happening on screen and the audio being played by the applications. To my surprise, QuickTime did not record the sound. I believe it worked before in previous OS X releases, but that is not something that I use often…
alecail
  • 4,010
150
votes
10 answers

How to change the default behaviour of the fullscreen/maximize button?

There is a question that deals with the different behaviour of the fullscreen button in the window bar. There, it is shown that by doing: ⌥ + ⇧ + Click on green or outer right icon (plus icon) I can maximize a window in both width and height to the…
k0pernikus
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150
votes
12 answers

Should I disconnect my MacBook Pro's power cord when the battery is fully charged?

My friend told me that I need to disconnect the power cord when the battery is fully charged. Otherwise, I will shorten the life of the battery. Other people say you should drain it once a month or point out that for long term storage, you should…
Moon
  • 4,515
149
votes
7 answers

Add images to existing PDF with Preview

Preview allows to add text and shapes to PDFs. But is it possible to add existing images (PNG / JPEG) to a PDF file as well? I do know that Preview already has some of image embedding by allowing the user to add signatures drawn on the screen of an…
muffel
  • 1,639
149
votes
3 answers

macOS notifications on dual monitors: how can I specify which monitor?

I would like to have macOS Notification Center notifications on my left monitor and not my right monitor. It's hard to see them when I'm looking at the left monitor (since they're all the way on the right side and they're rather large monitors). Is…
jamby
  • 1,593
148
votes
11 answers

Can home and end keys be mapped when using Terminal?

The Home and End keys on a MacBook Pro can be emulated with Fn + ← or fFn + →. Or when certain settings are changed, with the ⌘ Command key instead of Fn. None of these works in Terminal. As I frequently need to go to the beginning or end of the…
at01
  • 5,595
147
votes
2 answers

How to investigate high kernel task memory usage?

I was using my MacBook Pro (with 16GB of RAM) as usual and out of blue I've this popup that: Your system has run out of application memory. To avoid problems with your computer, quit any applications you are not using. I've obviously closed few…
kenorb
  • 12,695
147
votes
5 answers

cmd-tab behavior on Mavericks with multiple displays

I have a MacBook with Cinema Display, I have my dock on the MacBook screen side and my menubar is set to Cinema Display. In 10.8 this worked well, when I pressed cmd-tab to switch apps the task switcher would come up on the "main" Cinema Display. In…
Dmitry Shevchenko
  • 1,573
145
votes
1 answer

Is there a keyboard shortcut to navigate one level up in Finder?

On Windows, pressing Backspace in Explorer will navigate to the parent folder in the Explorer window. Is there an equivalent keyboard shortcut for Finder on macOS?
user674669
  • 2,626
144
votes
15 answers

Is there an OS X terminal program that can access serial ports?

What programs can act as a terminal and access serial ports? This is not for terminal access on an IP connection, this is so I can access a hardware device plugged into a USB/serial converter running at 9600/8/N/1.
Mark Harrison
  • 1,739
144
votes
16 answers

What directory comparison tools can I use on OS X?

I am looking for a tool that is able to compare directories, not only files. Also it is important to be able to call the tool from the command line. It would be great to have a free tool, but feel free to suggest commercial tools that fit the need.
sorin
  • 29,875
143
votes
8 answers

How can I keep my Mac awake AND locked?

I want to leave my Mac awake overnight so it syncs 4GB of data from Dropbox. I need to prevent the machine from going to sleep because that pauses the Dropbox sync I've been using Caffeine to keep the computer awake, but it also keeps the computer…
Tom Lehman
  • 1,795
143
votes
12 answers

Restricting Command+tab options to only apps that are in the current space

Edit: The original accepted answer is no longer valid for Mavericks. I am keeping it accepted for historical reasons, but all readers using Mavericks should use and up-vote this answer. By default, pressing ⌘+tab will display a list of all open…
ESultanik
  • 1,577
143
votes
10 answers

How can I combine multiple PDFs using the command line?

Is there a quick one-liner to combine multiple pdfs into one? I know it can be done using Preview.app
reacuna
  • 1,680
141
votes
3 answers

How can I list and edit all defined aliases in Terminal?

A friend who owned my current Mac before me created a lot of alias commands. Is there a way to list all defined aliases and the command that is associated with them? And if so, am I able to edit them or should I just remove them using unalias and…
MattStacey
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