Start Mac Sh With Terminal App
Mar 29, 2019 Restart your computer. Hold down ⌘ Command + R after you hear the start up noise to enter Recovery Mode. Select Utilities from the top menu, then Terminal. Enter csrutil disable; reboot in Terminal. Let the computer restart as usual. You can now use the steps above to open any application with full root privileges. Start Mac in Safe Mode. This troubleshooting startup environment restricts most startup items and limits the operating system to use only the basic OS core. If you can start the Mac in Safe Mode and then use the app in question without problems, the likely cause is not permissions or preference files but a conflict with another app or a startup. Extensions API. Extensions are universal Node.js modules loaded by both Electron and the renderer process. The extension system is designed around composition of the APIs we use to build the terminal: React components and Redux actions. Instead of exposing a custom API method or parameter for every possible customization point, we allow you to intercept and compose every bit of functionality!
In some flavors of Unix, you feel as if you've been cast into an alternate universe when you open a terminal window and work on the command line. But with OS X and its Darwin core, there's often an elegant integration between the two. In this how-to I'll show you how to launch an OS X app from the command line with the open command.
Photogrammetry software review. [Note: A little bit of prior UNIX experience will be helpful here.]
First off, I will admit this technique is fairly geeky. In my [Mac] OS X career, I've only used this trick a handful of times. However, it's so darn cool and charming that one just aches to use it at any opportunity.
Actually, upon reflection, there are some useful scenarios for this technique.
Start Mac Sh With Terminal Apps
- The Finder acts up, a terminal window is already open, and you'd like to be able to launch a GUI app that might help you diagnose the problem.
- You're a UNIX professional, live and breathe the command line, but you'd rather use a GUI text editor for coding instead of the raw and ugly vi or Emacs editors.
- You're writing, say, a Perl or Python script, for another user and, at some point in the script, you'd like to launch a GUI app that carries the workflow forward.
- You want to quickly run a utility with admin privileges without the restriction of the account you're logged into. See, for example, 'How to Find & Recover Missing Hard Drive Space.' In that case, you must bypass the open command and drill into the Package Contents to run the app with sudo and admin privileges. But I've digressed.
The Man Page
The terminal app is in the Utilities folder—which is found the Applications folder. Launch it now. The BSD UNIX command we'll be using is open. Below is the manual page ('man' for short), shown by typing:
I've printed most of the man page for the open command here for your perusal, but I'm not going to explore every argument. And feel free to jump right to the examples below to whet your appetite.
For this limited how-to, one interesting way to use the open command in this context is to use the [-a] option. Some other useful variations and arguments are in the examples below.
Typical Examples
Here are some short and sweet examples of the open command with the -a, -e, and -t arguments. They're easy to try. [If you don't have BBEdit installed, use any other favorite a text editor in /Applications.]
Open Doors
These are just a few of the cool things you can do on the command line with the open command. To keep things simple, I haven't delved into creating a search path or other Unix tricks like aliases. All that's been left for you to explore on your own.
I think this is one of the neatest tricks in OS X.
__________________
Launch button via Shutterstock.
The Terminal is generally reserved as an environment for advanced configuration of your Mac, but there are those who resort to it on a regular basis and use it in conjunction with OS X’s graphical interface to make optimal use of the system. If you do so, then you might find yourself periodically wanting to launch an application, either directly from the command line, or from an automated action like a script. In addition, you can use this feature to launch multiple instances of a standard OS X program, or run it as a different user, such as root, which can give you access to the system in ways you might otherwise not have.
The classic way
As with general Terminal syntax, you can launch an executable script or binary file from the Terminal by simply entering its full path. However, to do so for an OS X app with a graphical interface, you will need to specify the app’s executable file within the application package. In most cases, this will be a subdirectory called /Contents/MacOS/ that contains an executable with the same name as the app. For instance, opening TextEdit in the Applications folder will require you run the following command:
This can be useful for troubleshooting problems with the program, since you will see console output (errors, warnings, and sometimes other activity) output directly to the Terminal window hosting the program, as opposed to having to use the Console utility.
If you would like to run the app as a different user (e.g., the root account), then you can first switch user accounts in the Terminal with the “su” command, or use “sudo” before specifying the path to the Mac OS application, and this will launch the program as root (note that this might not always work):
Keep in mind that launching a program in this way will launch a new instance of it, so if you have TextEdit already open, then you will see another TextEdit program open next to it. This has its benefits in some circumstances, but can interfere with services like Apple’s Resume feature (ie, it may overwrite your current window configuration so when TextEdit is quit, current window positions will not be saved and then restored when the program is next opened).In addition, keep in mind that when opened in this manner, the Terminal window will be hosting the program, so it must remain open while the program is running—if you close the Terminal window, you will force-quit the program you have opened.
Using the “open” command
One of OS X’s unique Terminal commands is the “open” command that allows you to handle files, programs, and URLs in sometimes unique ways. The benefit of this program is, similar to using the Terminal for directly launching an app in the “classic” way; however, it does have two benefits. First, it is easier to use, and second, it does not require the Terminal remain open:
In this command, replace “appname” with the name of your desired app, and it should launch. Note that by default this command will, similar to the OS X graphical environment, only open one instance of an app, so if the program is already open then this command will switch to it. However, you can use this command to open another instance of the program, by adding the “-n” flag:
Keep in mind that as with the classic approach, multiple instances of an application running at the same time under the same user account may have odd consequences with supporting services that the application uses; however, for simple programs and utilities it can be useful to run another instance as root, in order to overcome permissions limitations with your current user account. Also consider apps like the Calculator, where it might be useful to have more than one calculation going at a time.
With the command run multiple times, you will open multiple instances of the program.