Mac Os Execute App From Command Line

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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.

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The same is the case from the command line. There are two commands for moving and copying: mv and cp.The first does the same as dragging a file to a new location on the same hard disk; the second. Mar 04, 2013  In other words, the graphical interface invoked when you execute it may not be using the same method that you'd use when executing it from the command line. based installer is inherently unique since it's a non-standard method of installing files (pkgs being the standard). As such, they are all going to operate uniquely. Oct 23, 2019  You can use kickstart to execute Apple Remote Desktop commands without restarting the remote computer. Learn how to control a remote Mac with Screen Sharing with the kickstart command-line utility in macOS Mojave 10.14 and later. Use the kickstart command-line utility in. Mac OS X is UNIX Certified from 10.5 on (right?) so this wisdom here is also applicable to Linux and other UNIX-like OSs. (in a less complex way, Mac OS X's Automator is pretty damn powerful, as is the AppleScript Editor, both of which can execute shell scripts and other commands with programs, and wrap them up into a bundle for.

[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.

  1. 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.
  2. 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.
  3. 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.
  4. 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.

Mac Os Execute App From Command Line

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.


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