Questions tagged [macos]

macOS is the current marketing name for Apple's Macintosh Operating System. This OS was previously known as OS X, and Mac OS X before that (which itself succeeded the 'classic' Mac OS).

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109
votes
6answers
360k views

Is it safe to delete ~/Library/Caches?

Is it safe to delete the file Caches, in the Library of the Mac OS X Hard Drive? It's a pretty big file, 3.56 GB, Caches reminds me of logs i don't need or browser cookies. Is it safe to delete the ...
24
votes
3answers
20k views

Can I use Back To My Mac's mDNS address and for ssh and other routing of traffic?

On Lion and iCloud, the old MobileMe and Snow Leopard mDNS naming has changed and no longer works. I'm wondering how to use command line tools to find out the DNS name that Apple has assigned to my ...
62
votes
19answers
41k views

Lock Screen Command One-Liner

I'm trying to find out whether there is any kind of equivalent command line one-liner which replicates the exact identical functionality of the 'Lock Screen' menu option available via the Keychain app ...
120
votes
10answers
77k views

Why is it not possible to use the “cut” command to manipulate a file in the Finder?

On OS X 10.6 (Snow Leopard), I don't seem to be able to us the "Cut" command on a file in the Finder, like you can do in Windows Explorer on Microsoft Windows. (In Windows, once you select a file and "...
27
votes
4answers
41k views

What steps are needed to create a new user from the command line?

What commands (or script) can create a fully functional user account on Mountain Lion, running only from the command line via terminal or ssh. It looks like an existing pair of answers might work, ...
63
votes
3answers
38k views

What's the difference between Real, Virtual, Shared, and Private Memory?

The different columns in Activity Monitor are a little confusing
51
votes
13answers
57k views

Why would I disable swap file in Mac OS X?

I came across a thread about installing an SSD drive in MacBook Pro. Someone in the comments also recommended to disable the swap file but didn't say why: sudo launchctl unload -w /System/Library/...
38
votes
5answers
16k views

Is there a way to hide certain apps from the cmd+tab menu?

Is there a way to hide certain apps from cmd+tab? The problem I'm facing is that I have some apps (like iTunes and of course Finder) always open. But when I'm working and switching between apps that ...
47
votes
5answers
941k views

How do I delete or fix my Keychain after changing my password?

How do I reset my main keychain and completely delete the old one? I changed my password and its been coming up with all of these popups asking for my new password when I first login. If anyone can ...
28
votes
8answers
34k views

How do I disable the volume control overlay?

When changing the volume on a Mac, you get a big ugly gray bezel showing the change in volume. This is super annoying when (say) watching a movie. Is there any way to disable this?
44
votes
4answers
37k views

Copy and Cut sometimes don't work [closed]

My system is kept fully up to date and I still see this problem intermittently, although not as often as I used to; I would say that this has not been fully fixed. If there are any workarounds other ...
9
votes
2answers
12k views

Triple boot macOS High Sierra, Ubuntu, and Windows without rEFInd

I currently have three OSes installed on my 2017 MacBook Air: macOS, Ubuntu, and Windows 10. I couldn't boot into Ubuntu without rEFInd, but I strongly prefer the default boot manager, because I want ...
28
votes
8answers
25k views

How do I make windows save their position on screen after re-attaching a display?

When I attach a second monitor to my MacBook, I drag many windows onto it. When I detach the monitor, all the windows move back onto my MacBook's display. How can I make it so that when I re-attach ...
22
votes
2answers
26k views

How to thin your local Time Machine Snapshots on macOS High Sierra

I have noticed that my extra space just suddenly disappears since upgrading to macOS High Sierra. For example, I have 170 GBs free in the morning and then by the afternoon I'm down to 56 GBs. Then ...
23
votes
3answers
28k views

How can I dim the screen from Terminal?

Is it possible to dim the screen from Terminal, in a Mac with OS X Lion? Is there any command to do control brightness and volume?
14
votes
1answer
7k views

What and how does macOS Mojave implement to restrict applications access to personal data?

As well as many of the other features talked about during macOS Mojave's release like dark mode and the addition of new apps like Home, another key feature of macOS Mojave seems to be it's heightened ...
17
votes
3answers
11k views

How to hide or remove useless network names from the wifi menubar icon

I have obnoxious neighbors that think its funny to use offensive words for their SSIDs. I would like to remove those SSIDs from, at a minimum, the wifi menubar icon. If its easier, hiding/removing ...
5
votes
4answers
6k views

How do I install Windows 10 on MacBookPro5,1, with no optical drive (SSD+HDD)

I have a huge problem. I am not able to install Windows 10 on my late 2008 MacBook Pro with bootcamp. I have replaced the optical drive as it was not working with a 1 TB HDD and i have a SSD drive ...
11
votes
1answer
5k views

Is there a script I can use to download the Mojave installer without being signed in to the App Store?

Is there a way to script and download the Mojave installer without signing in to the App Store? Something other than opening or clicking a url that points to the installer on the Mac App Store would ...
3
votes
1answer
3k views

Install macOS Sierra on VirtualBox?

I’m trying to install macOS Sierra on VirtualBox, but can’t seem to make it work. For reference, here are the steps I took. Downloaded the Install macOS Sierra app from the App Store. Used the ...
6
votes
5answers
6k views

Shutdown Cause -128

My Macbook pro (early 2011, upgraded to 10.11) started behaving strangely lately. It started randomly crashing multiple times of the day, and the only information I've been able to find is the ...
3
votes
1answer
2k views

iMac disk partion FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF and fusion drive unlinked

I was trying to uninstall linux mint and was trying to restore the partitions back to one. Somehow I ended with the one of the partition labeled FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF. This are the ...
126
votes
20answers
143k views

How to stop OS X from writing Spotlight and Trash files to memory cards and USB sticks?

When plugging a USB stick into a Mac, OS X creates a number of hidden files on the stick, including a Spotlight index and Trash folder. Example from the terminal for a USB stick "Untitled": $ ls -a /...
93
votes
10answers
37k views

How do I speed up new Terminal tab loading time?

How can i speed up the terminal startup in Lion? I'm not referring to the startup of the Terminal application, but to the startup terminal windows, like when i open a new tab. I don't have anything ...
120
votes
4answers
429k views

Using The Terminal Command to Shutdown, Restart and Sleep My Mac?

I'm getting more interested in using Terminal as an alternative way to address solutions on my Mac. I have seen this question entitled "Is there a better way to shutdown/restart OSX?". I would ...
86
votes
13answers
89k views

Write in NTFS using Mavericks [duplicate]

I was able to read and write NTFS filesystems normally in Mountain Lion, but after the upgrade this stopped to work. I installed ntfs-3g and fuse4x using homebrew in Mountain Lion and followed the ...
117
votes
2answers
19k views

What functionality do 'marks' offer in the El Capitan Terminal?

Since upgrading to OS X El Capitan, I've noticed a change in the Terminal: Executed lines show an opening bracket on the left, and a closing bracket on the right, as shown in this screenshot: Similar ...
127
votes
6answers
222k views

Can I get the CPU temperature and fan speed from the command line in OS X?

Is there a command I can run from the command line in OS X to get the current CPU temperature and/or the fan speed(s)? To be more specific, I'd like to be able to get the same info available in the ...
97
votes
15answers
246k views

How to arrange two windows easily to left and right side?

In Windows 7, we can easily arrange two windows with these shortcuts: Option (Alt) ⌥ + ← maximizes the window to the left side of the screen, and Option (Alt) ⌥ + → maximizes the window to the right ...
45
votes
6answers
23k views

Is it possible to launch a program in a specific language?

I'm a developer, and my primary language is French, so I use Mac OS X in French. However, I need on a regular basis to open an application in English to do support. Right now I'm going to the ...
86
votes
9answers
148k views

Where does the Mac store account pictures?

I took a picture to add to my account on Mac. Now I want to use it on messenger, but I can't find it. On the account config, it's too small. I need to find the original. Where are the accout ...
73
votes
16answers
59k views

Copying the current directory's path to the clipboard

What's a quick way of copying the path to the directory that's currently open in Finder? Copying that path is very easy in Linux and Windows file managers - you just need to copy it from the address ...
56
votes
10answers
57k views

Change the mouse wheel scrolling acceleration

I am new Mac user and I don't really like the Magic Mouse so I reverted to a good old 3 button mouse with a scroll wheel. When I turn the wheel slowly, it only scrolls pixel per pixel (or per two ...
57
votes
13answers
188k views

High Sierra - The path /System/Installation/Packages/OSInstall.mpkg appears to be missing or damaged

Got the following error The path /System/Installation/Packages/OSInstall.mpkg appears to be missing or damaged while upgrading Mac Mini (Late 2012) to High Sierra. The only option on the screen ...
54
votes
5answers
161k views

“System” storage on macOS Sierra is 470GB!

My Mid 2012 MacBook Pro 13" says I suddenly ran out of Storage space. My Mac barely has any data and my upgrade to Sierra was a clean install. Nothing was ported from previous backups. If you see ...
53
votes
7answers
10k views

Do Macs need to be defragmented?

I don't see any application to defragment my Mac (running OS X). Is defragmenting not necessary for Mac OS X? If so, why not?
33
votes
8answers
25k views

SRM gone in macOS Sierra (10.12)

I've just updated to macOS 10.12 and when I try to execute srm in Terminal, it says -bash: srm: command not found. Is srm removed? How to fix this?
38
votes
11answers
111k views

Do you know a simple sound booster app for Mac?

Some videos on websites have the sound volume so low that even with all sound settings at maximum levels it's hard to listen. I'm looking for an app that would allow me to boost the Mac's volume. ...
23
votes
9answers
11k views

Snap feature for Mac?

Coming from Windows I have gotten extremely used to the Windows Snap feature, which resizes a window when it's dragged to the screen edges. However, it's not built into OS X. Are there any 3rd party ...
17
votes
5answers
10k views

One mac, Two or more storage devices - how to divide things?

We're at a crossroads where most Macs now have space and connections to contain two storage devices. SSD are fast, low capacity and expensive - HDD are in comparison slow, huge and cheap. Both iMacs ...
14
votes
6answers
20k views

Unsaved Files in OS X Lion

Where do unsaved files go in Lion? I quit TextEdit without saving since I had no intention of saving, but with autosave the file still got save somewhere since when I reopen TextEdit the file I was ...
30
votes
5answers
21k views

Managing Metered Connections on OSX

I'm being forced to use my Macbook more and more with my metered 4G connection. I really need to keep data usage limited. Windows has an metered connection mode which really helps with this. What's ...
27
votes
3answers
145k views

USB Drive Will Not Mount, Not Listed in Disk Utilities, but Found In System Profiler

I have a Seagate FreeAgent Go drive with the optional docking station. I use it to keep files that I don't access on a regular basis and as a place to do "quick backups" of things like my Paperless ...
21
votes
5answers
16k views

What does it mean if I have lots of “Inactive” memory at the end of a work day?

After a day's of work at my MacBook Pro running Mac OS X 10.6.5, Activity Monitor shows that the majority of my computer's 8 GB of memory is "Inactive", and only a tiny sliver of the pie chart is "...
18
votes
1answer
164k views

How to stop my machine asking for multiple passwords when I log in?

Ever since I changed my user account password, every time I log in to my machine I have to enter multiple passwords. First, I enter the new account password to actually log in. Once I'm at my desktop ...
12
votes
3answers
35k views

How to restore system from network drive?

I have a 2014 MacBook Pro. I want to restore my OS from a Time Machine backup which is on a shared network volume. When I restart in recovery (Apple-Opt-R), it boots from internet, but if I try to ...
35
votes
8answers
67k views

Can I disable auto-correction of a single word on OS X?

I'm running into an annoying issue with OS X's automatic spelling correction where the word nala gets automatically corrected to napa. I've tried adding nala to my custom dictionary under ~/Library/...
9
votes
3answers
21k views

Where does Time Machine store its settings?

I'm looking for the file that contains all the Time Machine exclusions entered in its Options dialogue. I know that (some of?) the scheduling related settings are stored in the com.apple.backupd-*....
9
votes
7answers
44k views

How Should I Correct the Owners and Permissions in an OS X User Folder?

My issue is that I've seriously busted all of the owners and permissions on my user folder and subfolders and it's causing lots of issues using lots of applications. The initial cause was that I had ...
8
votes
2answers
8k views

How to set ⌘ + H to enable show hidden files

I want my Mac to show hidden files when i hit ⌘ + H (like ubuntu). I can see hidden files by putting this defaults write com.apple.finder AppleShowAllFiles YES command in terminal but i want to get a ...