Mac Mojave Terminal App Disappeared

The main reason why the screensaver disappears on macOS Mojave is because of a bug. Users have noted that the screensaver disappeared after installing some system updates. After the installation, the screensaver either stopped working or is showing a default folder. Unfortunately, you can’t undo an installed update on Mac. This is one of the places where apps tend to keep any necessary support files. It’s also a preferred location for preference files used by apps to customize their user interface to meet your needs. Open in Terminal. I’m using Mac OS Mojave on a 2018 Mac Mini, and it was easy peasy. Leland Hall @ 5:15 pm on April 9, 2017. Jun 15, 2018  The code above lets you save all your screenshots as JPGs instead of the system default PNG. Killall: If you execute a Terminal command that affects any system process or app, you're going to need to reboot the process to make it take effect. 'killall' followed by the process will do so.(This is also another way to force quit misbehaving apps or processes if your Force Quit menu isn't behaving.). Use the following Terminal command to reset the DNS cache in OS X v10.9.5 and earlier: sudo killall -HUP mDNSResponder. Mac OS X Snow Leopard. Use the following Terminal command to reset the DNS cache in OS X v10.6 through v10.6.8: sudo dscacheutil -flushcache. Try Open DNS Use Open DNS With Safari- Reinstall Safari. Unhide Files through Terminal. You can use the Terminal app to unhide any hidden files on Mac. Steps are as follows: From Finder Applications Utilities, open Terminal. In Terminal, type defaults write com.apple.finder AppleShowAllFiles YES, then hit Return. Press the Option key and then secondary-click the Finder icon in Dock.

• Iphone Terminal App
• Mac Mojave Terminal App Disappeared Windows 10

These advanced steps are primarily for system administrators and others who are familiar with the command line. You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time.

Download macOS

Find the appropriate download link in the upgrade instructions for each macOS version:

macOS Catalina, macOS Mojave, ormacOS High Sierra
Installers for each of these macOS versions download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave, or Install macOS High Sierra. If the installer opens after downloading, quit it without continuing installation. Important: To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server.

OS X El Capitan
El Capitan downloads as a disk image. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. You will create the bootable installer from this app, not from the disk image or .pkg installer.

Use the 'createinstallmedia' command in Terminal

1. Connect the USB flash drive or other volume that you're using for the bootable installer. Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended.
2. Open Terminal, which is in the Utilities folder of your Applications folder.
3. Type or paste one of the following commands in Terminal. These assume that the installer is still in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. If it has a different name, replace MyVolume in these commands with the name of your volume.
   Catalina:*
   Mojave:*
   
   High Sierra:*
   El Capitan:
   
4. Press Return after typing the command.
5. When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
6. When prompted, type Y to confirm that you want to erase the volume, then press Return. Terminal shows the progress as the bootable installer is created.
7. When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Catalina. You can now quit Terminal and eject the volume.

* If your Mac is using macOS Sierra or earlier, include the --applicationpath argument, similar to the way this argument is used in the command for El Capitan.

Use the bootable installer

After creating the bootable installer, follow these steps to use it:

1. Plug the bootable installer into a compatible Mac.
2. Use Startup Manager or Startup Disk preferences to select the bootable installer as the startup disk, then start up from it. Your Mac will start up to macOS Recovery.
   Learn about selecting a startup disk, including what to do if your Mac doesn't start up from it.
3. Choose your language, if prompted.
4. A bootable installer doesn't download macOS from the Internet, but it does require the Internet to get information specific to your Mac model, such as firmware updates. If you need to connect to a Wi-Fi network, use the Wi-Fi menu in the menu bar.
5. Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.

Learn more

For more information about the createinstallmedia command and the arguments that you can use with it, make sure that the macOS installer is in your Applications folder, then enter this path in Terminal:

Catalina:

Mojave:

High Sierra:

El Capitan:

The Mac OS is chock full of hidden areas where data, information, or features have been secreted away from Mac users. One of these clandestine locations is the users library folder, commonly written out as ~/Library/.

What’s In Your Library?
Although hidden, the users library folder contains quite a lot of useful information. This is one of the places where apps tend to keep any necessary support files. It’s also a preferred location for preference files used by apps to customize their user interface to meet your needs.

The ~/Library folder may also contain logs, preference panes, printers, screen savers, and fonts. Essentially, the users library folder can contain any application- or service-related information that is specific to a user. As an example, consider the Safari browser. It stores individual preference files in each user’s library folder. This allows each user to customize Safari independently of the others, without requiring multiple copies of the Safari app to be installed.

Why Hide the ~/Library Folder?
The users library folder hasn’t always been hidden. It used to be just another folder in a user’s home directory, readily available from the Finder. That changed when Apple released OS X Lion, and the ~/Library folder was banished from the Finder.

We don’t know Apple’s reason for removing the ~/Library folder from sight, but we can guess: Apple support was tired of calls from users complaining about various apps no longer working, or acting strangely. In many cases, tech support was probably able to trace the problem to app support files in the users library folder being deleted or manipulated without authorization, so to speak.

Hiding the ~/Library folder was an easy, and effective, solution.

How Is the Library Folder Hidden?
The file system used in the Mac OS supports various flags, which are ways to indicate special attributes of a file. One of these is the hidden flag. Set the hidden attribute to true on a file or folder, and it will no longer be displayed.

How to Unhide the ~/Library Folder
If you set the hidden attribute to false for the ~/Library folder, it will become visible in the Finder once again. It’s really that simple, at least in concept. Turns out there are many ways to regain access to the ~/Library folder, so many in fact that we’ll only look at a few of the available methods to unhide the library folder.

(You can use the Terminal app to gain access to your hidden Library folder.)

Open in Terminal
The Terminal command “open” will open a file or folder in the default app. Since folders like the ~/Library folder use the Finder as the default app to open them, you can use the open command as shown below:

Launch Terminal, located in the /Applications/Utilities/ folder.

At the Terminal prompt, enter:

open ~/Library

Press return or enter.

A Finder window will open, containing the contents of the ~/Library folder.

Use the Go to Folder Command
The Finder includes a command that will open any folder on your Mac, provided you know the pathname to the directory.

(The Finder’s Go to Folder can take you to any folder anywhere on your Mac.)

Either open a Finder window, or click on the Desktop to make it the frontmost app.

From the Finder’s Go menu, select Go to Folder.

In the dialog box that opens, enter:

~/Library

and then click the Go button.

The ~/Library folder will open in a Finder window.

Just an Option-Click Away
With the Finder as the frontmost app, move the cursor to the Finder’s Go menu.

A list of common folders, such as Documents and Downloads, that you can quickly jump to will be displayed. If you hold down the Option key, the Library folder will be included in the list.

Select the Library folder from the list (while holding down the Option key), and the Library folder will open.

(If you hold down the Option key while accessing the Finder’s Go menu, the Library folder will appear as one of the destinations.)

Permanently Unhide the ~/Library Folder
So far, the methods we’ve mentioned provide you with access to the hidden ~/Library folder without actually making it visible; that is, changing the folder’s hidden flag. The next set of methods of accessing the folder do so by changing the ~/Library folder’s hidden flag, thus making it visible all the time.

Use Terminal to Change the Hidden Flag State
Launch Terminal, located at /Applications/Utilities/.

At the Terminal prompt, enter the following:

chflags nohidden ~/Library

Press enter or return.

The ~/Library folder is now visible and will remain so until you set the hidden flag. You can check this by opening a Finder window on your home folder. You should see the Library folder listed.

(You can use Terminal to set or reset the hidden flag that controls the visibility of the ~/Library folder.)

To hide the ~/Library folder, use the following Terminal command.

Iphone Terminal App

chflags hidden ~/Library

Press enter or return.

Note: If you had a Finder window open on your home folder, you may still see the Library folder listed. The Finder window needs to be refreshed to bring it up to date. One method is to simply close the Finder window, and then open it again.

Use the Finder’s View Options
Starting with OS X Mavericks, Apple included an option within the Finder app to make the ~/Library folder always viewable. By default, the ~/Library folder is still hidden, but you can change that setting by using the Finder’s View settings.

Open a Finder window on your home folder.

From the Finder’s View menu, select Show View Options.

In the View Options dialog box, place a checkmark in the Show Library Folder box. You’ll find the checkbox near the bottom of the dialog box.

Mac Mojave Terminal App Disappeared Windows 10

As we noted previously, you may need to refresh the Finder window before the Library folder appears.

(You can use the Finder’s View options to make the Library folder visible.)

To return the Library folder to its previous hidden state, just remove the checkmark from the Show Library Folder box.

Ways to Access the ~/Library Folder Without Changing Visibility
We think the ability to quickly access the ~/Library folder is an important consideration, especially for troubleshooting app-related issues you may come across.

And while there’s nothing particularly onerous about any of the methods we’ve already described for gaining access to the ~/Library folder, it just seems that having a simple and quick method that’s only a click away is a good idea.

Add the ~/Library Folder to the Dock or the Finder Toolbar
Our last method for quickly going to the ~/Library folder requires a slight bit of preparation, but once set up, it’s by far the easiest method for accessing the folder, mainly because there’s no typing or multistep process involved, just a simple click on an icon.

Start by opening the ~/Library folder using any of the methods described above.

Open a Finder window to your home folder. You should see the Library folder listed in the Finder window.

(Want quick access to your Library folder? Simply add it to the Finder’s toolbar.)

Drag the Library folder icon to either the Finder toolbar or the Dock. If you’re dragging it to the Finder toolbar, you may need to hold down the Command key while you drag the icon. If you’re dragging the Library folder to the Dock, remember that folders have to be placed to the right of the Dock divider.

There Are Many More Ways to Access the ~/Library Folder
We looked at five, six, or seven ways to access the ~/Library folder. The actual number depends on your definition of access. It’s five if you only count unique ways; it’s six if you include the last entry, which is really just a means to simplify any of the previous methods (so, it’s not unique); or it’s seven if you count the last one as two different ways.

But even with the methods pointed out here, there are still other ways you can access the hidden ~/Library folder. If you would like to help fill in all the methods, leave a comment that includes instructions. I think we should be able to come up with at least five additional methods; ten if we’re feeling a bit creative.

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