If you need to search for files in OS X, one option it is to use the OS X Terminal application and some of its services. Topher Kessler Oct. 18, 2013 3:41 p.m. To open an unsigned app, you need to right-click or Control-click the app and select “Open”. This works on macOS Sierra as well as previous versions of macOS. You’ll be warned that the app is from an unidentified developer–in other words, it isn’t signed with a valid developer signature. If you trust the app, click “Open” to run it. Here's a simple script that will allow you to open multiple files in Preview as a collection from the Terminal. This will allow you to browse multiple files in a single Preview window, very handy if you don't like Finder but dig the Terminal:). Hide/Unhide and View Files/Folders in Finder. MacOS Terminal provides you an easy way to Hide.
Basically, a Mac application has a .app
extension, but it’s not really a file — it’s a package. You can view the application’s contents by navigating to it in the Finder, right-clicking it and then choosing “Show Package Contents”.
The internal folder structure may vary between apps, but you can be sure that every Mac app will have a Contents
folder with a MacOS
subfolder in it. Inside the MacOS
directory, there’s an extension-less file with the exact same name as the app itself. This file can be anything really, but in its simplest form it’s a shell script. As it turns out, this folder/file structure is all it takes to create a functional app!
After this discovery, Thomas Aylott came up with a clever “appify” script that allows you to easily create Mac apps from shell scripts. The code looks like this:
Installing and using appify is pretty straightforward if you’re used to working with UNIX. (I’m not, so I had to figure this out.) Here’s how to install it:
PATH
and name it appify
(no extension). I chose to put it in /usr/local/bin
, which requires root privileges.sudo chmod +x /usr/local/bin/appify
to make appify executable without root privileges.After that, you can create apps based on any shell script simply by launching Terminal.app and entering something like this:
Obviously, this would create a stand-alone application named Your App Name.app
that executes the your-shell-script.sh
script.
After that, you can very easily add a custom icon to the app if you want to.
.icns
file or a 512×512 PNG image with the icon you want, and copy it to the clipboard (⌘ + C). (Alternatively, copy it from an existing app as described in steps 2 and 3.).app
file of which you want to change the icon and select “Get Info” (or select the file and press ⌘ + I).Note that this will work for any file or folder, not just .app
files.
I like to run Chrome/Chromium with some command-line switches or flags enabled. On Windows, you can create a shortcut and set the parameters you want in its properties; on a Mac, you’ll need to launch it from the command line every time. Well, not anymore :)
The &
at the end is not a typo; it is there to make sure Chromium is launched in a separate thread. Without the &
, Chromium would exit as soon as you quit Terminal.app.
Say you’re working on a project and you want to debug it from a web server. The following shell script will use Python to launch a local web server from a specific directory and open the index page in your default browser of choice. After appifying it, you won’t even need to open the terminal for it anymore.
Needless to say, the possibilities are endless. Just to give another example, you could very easily create an app that minifies all JavaScript and CSS files in a specific folder. Got any nice ideas? Let me know by leaving a comment!