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1How to install ZDoom
2How to start ZDoom

This will generate the.intunemac file from the.pkg line-of-business app file. IntuneAppUtil -r -v This will extract the detected parameters and version for the created.intunemac file. Command-line parameters available-h Help-r Outputs the detection.xml file of the provided.intunemac file to stdout. In this how-to I'll show you how to launch an OS X app from the command line with the open command. Note: A little bit of prior UNIX experience will be helpful here. First off, I will admit this.

How to install ZDoom

Download the latest GZDoom (currently 4.5.0). Alternatively, you can get an unofficial development build from DRD Team.
Extract all the files from the ZIP file into a new directory.
When using a new folder make sure to include an IWAD in the ZDoom directory. Alternatively, you can set the DOOMWADDIR environment variable to point to the directory in which the IWADs are kept. Furthermore, if you obtained Doom-engine games through GOG.com or Steam, ZDoom can find them automatically. Finally, additional directories can be added by editing the [IWADSearch.Directories] section of the ini.

Mac OS X Instructions

Copy the included app bundle to your applications directory.
IWAD files should be placed in your Library folder.

How to start ZDoom

To play an unmodified game, simply double-click gzdoom.exe, or a shortcut to it, or call it from a command line. If several IWADs are found, a selection screen will show up asking you which game you want to play.

For playing mods, you need to tell ZDoom to load the relevant mod files. Since ZDoom does not integrate a frontend for choosing mods, the following are just a series of standard methods to open an executable with one or several files as parameters. These methods are for Windows; for Linux or Mac OS X you will have to extrapolate.

Using a frontend

This might be the best method. Select a frontend and install it. Instead of starting ZDoom directly, start the frontend. This will let you select which mod to load and set additional command line parameters as well. Refer to the frontend's documentation.

Drag-and-drop

The simplest method. Select the mod files to load, and then drag and drop them over ZDoom's executable. If the mod files are not in the same directory as ZDoom, you will need to open a file manager window in each directory. You can also drag the mod file over a shortcut to the ZDoom executable.

Send to

Add a shortcut to ZDoom in your SendTo folder. Depending on the version of Windows you use, the path to the SendTo folder may differ. In XP, it is in C:Documents and Settings<userid>SendTo. For Vista or later, it is in %APPDATA%MicrosoftWindowsSendTo.

Simply add a shortcut to ZDoom in that folder, and now you can right-click->send to->ZDoom any file you want. You can edit the shortcut to add command line parameters to it as well.

Note that you may need to set Windows Explorer to show hidden and system files for it to accept to show you the SendTo folder.

Open with

In Windows Explorer, select Tools -> Folder Options, then under 'File Types' associate the file types wad with gzdoom.exe. (If .wad is not listed in the 'Extension' column, click on 'New' to create it.) Once this is done, you can double-click on a wad file and it'll launch ZDoom with that file automatically. If the file type is associated with several programs (for example, ZDoom and other source ports), then use right-click -> Open With to select ZDoom.

You have to do this for each file type that can be loaded in ZDoom (wad, pk3, zip...).

Shell extension

You can create shell extensions in Windows Explorer to make new context menu entries. As for the 'Open With' method, select Tools -> Folder Options, then under 'File Types', select the wad extension (if it is not already present, create it), then click on 'Advanced' near it. Click 'New...' to create a new action. In the 'Action' field, describe what you want the shell extension to display, for example, 'Play with ZDoom'. In the 'Application used to perform action' field, place an instruction for the shell extension to activate, with the full path to gzdoom.exe (between quotes if there are spaces in a directory name), followed by -file '%1'.

Right clicking on WAD files should now list whatever you marked earlier in the Action field, and should perform the action listed in the second field. Again, you will have to do this for each file type.

With the command line

A simple command line window can be shown with Start->Run (or the Windows key + R keyboard shortcut). Click on 'Browse' to find gzdoom.exe, and then you can add command line parameters as needed; for example to load 'foobar.wad' from the same directory, simply add 'foobar.wad' after gzdoom.exe on that command line.

Another possibility is to open a command line window. With Vista or 7, hold shift while right-clicking in an empty area of the ZDoom folder, or on the ZDoom folder itself. The 'Open command window here' option will appear. You can now type your command line with the appropriate parameters, as explained above.

With batch files

You can create batch files for combinations of mods and other command line parameters that you use often. Just type the command line in a text file, rename it with a .bat extension, and then you can double-click on the batch file.

Note that you may need to set Windows Explorer not to hide known file extensions in order to actually change a text file's extension from .txt to .bat.

Logfile

When ZDoom or GZDoom begins to load it sets up the required envinronment and checks for possible errors. This is reflected in a log which quickly scrolls down the screen just before the menu is shown.

While there are several methods to access this log, the two most useful methods are:

start the program with a batch file, which contains ' gzdoom +logfile mylog.txt '
in the ZDoom directory, create a file named autoexec.cfg and in it put this text line: ' logfile mylog.txt '

Then, every time ZDoom or GZDoom is started, the text file ' mylog.txt ' is generated.

Note: instead of mylog.txt you can call it whatever seems appropriate, eg ' startup.txt '

Using the terminal (for Mac OS X)

To start ZDoom from Mac OS X's Terminal, you must navigate inside GZDoom.app first. The actual executable program file is in /GZDoom.app/Content/MacOS/. To run it, navigate to that folder and type this:

ZDoom for Mac OS X will display the same IWAD selection box as any other version of ZDoom.

How to open Terminal on Mac

The Terminal app is in the Utilities folder in Applications. To open it, either open your Applications folder, then open Utilities and double-click on Terminal, or press Command - spacebar to launch Spotlight and type 'Terminal,' then double-click the search result.

You’ll see a small window with a white background open on your desktop. In the title bar are your username, the word 'bash' and the dimensions of the window in pixels. Bash stands for 'Bourne again shell'. There are a number of different shells that can run Unix commands, and on the Mac Bash is the one used by Terminal.

If you want to make the window bigger, click on the bottom right corner and drag it outwards. If you don’t like the black text on a white background, go to the Shell menu, choose New Window and select from the options in the list.

If Terminal feels complicated or you have issues with the set-up, let us tell you right away that there are alternatives. MacPilot allows to get access to over 1,200 macOS features without memorizing any commands. Basically, a third-party Terminal for Mac that acts like Finder.

For Mac monitoring features, try iStat Menus. The app collects data like CPU load, disk activity, network usage, and more — all of which accessible from your menu bar.

Basic Mac commands in Terminal

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The quickest way to get to know Terminal and understand how it works is to start using it. But before we do that, it’s worth spending a little time getting to know how commands work. To run a command, you just type it at the cursor and hit Return to execute.

Every command is made up of three elements: the command itself, an argument which tells the command what resource it should operate on, and an option that modifies the output. So, for example, to move a file from one folder to another on your Mac, you’d use the move command 'mv' and then type the location of the file you want to move, including the file name and the location where you want to move it to.

Let’s try it.

Type cd ~/Documentsthen and press Return to navigate to your Home folder.
Type lsthen Return (you type Return after every command).

You should now see a list of all the files in your Documents folder — ls is the command for listing files.

To see a list of all the commands available in Terminal, hold down the Escape key and then press y when you see a question asking if you want to see all the possibilities. To see more commands, press Return.

Unix has its own built-in manual. So, to learn more about a command type man [name of command], where 'command' is the name of the command you want find out more about.

Terminal rules

There are a few things you need to bear in mind when you’re typing commands in Terminal, or any other command-line tool. Firstly, every character matters, including spaces. So when you’re copying a command you see here, make sure you include the spaces and that characters are in the correct case.

You can’t use a mouse or trackpad in Terminal, but you can navigate using the arrow keys. If you want to re-run a command, tap the up arrow key until you reach it, then press Return. To interrupt a command that’s already running, type Control-C.

Commands are always executed in the current location. So, if you don’t specify a location in the command, it will run wherever you last moved to or where the last command was run. Use the cdcommand, followed by a directory path, like in Step 1 above, to specify the folder where you want a command to run.

There is another way to specify a location: go to the Finder, navigate to the file or folder you want and drag it onto the Terminal window, with the cursor at the point where you would have typed the path.

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Here’s another example. This time, we’ll create a new folder inside your Documents directory and call it 'TerminalTest.'

Open a Finder window and navigate to your Documents folder.
Type cd and drag the Documents folder onto the Terminal window.
Now, type mkdir 'TerminalTest'

Go back to the Finder, open Text Edit and create a new file called 'TerminalTestFile.rtf'. Now save it to the TerminalTest folder in your Documents folder.

In the Terminal window, type cd ~/Documents/TerminalTest then Return. Now type lsand you should see 'TerminalTestFile' listed.

To change the name of the file, type this, pressing Return after every step:

cd~/Documents/Terminal Test
mv TerminalTestFile TerminalTestFile2.rtf

That will change the name of the file to 'TerminalTestFile2'. You can, of course, use any name you like. The mv command means 'move' and you can also use it to move files from one directory to another. In that case, you’d keep the file names the same, but specify another directory before typing the the second instance of the name, like this:

mv ~/Documents/TerminalTest TerminalTestFile.rtf ~/Documents/TerminalTest2 TerminalTestFile.rtf

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More advanced Terminal commands

Terminal can be used for all sorts of different tasks. Some of them can be performed in the Finder, but are quicker in Terminal. Others access deep-rooted parts of macOS that aren’t accessible from the Finder without specialist applications. Here are a few examples.

Copy files from one folder to another

In a Terminal window, type ditto [folder 1] [folder 1] where 'folder 1' is the folder that hosts the files and 'folder 2' is the folder you want to move them to.
To see the files being copied in the Terminal window, type -v after the command.

Download files from the internet

You’ll need the URL of the file you want to download in order to use Terminal for this.

cd ~/Downloads/
curl -O [URL of file you want to download]

If you want to download the file to a directory other than your Downloads folder, replace ~/Downloads/ with the path to that folder, or drag it onto the Terminal window after you type the cd command.

Change the default location for screenshots

If you don’t want macOS to save screenshots to your Desktop when you press Command-Shift-3, you can change the default location in Terminal

defaults write com.apple.screencapture location [path to folder where you want screenshots to be saved]
Hit Return
killall SystemUIServer
Hit Return

Change the default file type for screenshots

By default, macOS saves screenshots as .png files. To change that to .jpg, do this:

defaults write com.apple.screencapture type JPG
Press Return
killall SystemUIServer
Press Return

Delete all files in a folder

The command used to delete, or remove, files in Terminal is rm. So, for example, if you wanted to remove a file in your Documents folder named 'oldfile.rtf' you’d use cd ~/Documents to go to your Documents folder then to delete the file. As it stands, that will delete the file without further intervention from you. If you want to confirm the file to be deleted, use -i as in rm -i oldfile.rtf

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To delete all the files and sub-folders in a directory named 'oldfolder', the command is rm -R oldfolder and to confirm each file should be deleted, rm -iR oldfolder

Just because you can use Terminal to delete files on your Mac, doesn’t mean you should. It’s a relatively blunt instrument, deleting only those files and folders you specify.

Another way to free up space

If your goal in removing files or folders is to free up space on your Mac, or to remove junk files that are causing your Mac to run slowly, it’s far better to use an app designed for the purpose. CleanMyMac X is one such app.

It will scan your Mac for files and recommend which ones you can delete safely, as well as telling you how much space you’ll save. And once you’ve decided which files to delete, you can get rid of them in a click. You can download CleanMyMac here.

As you can see, while Terminal may look scary and seem like it’s difficult to use, it really isn’t. The key is learning a few commands, such as those we’ve outlined above, and getting to know the syntax for those commands.

However, you should be careful when using Terminal, it’s a powerful tool that has deep access to your Mac’s system files. Check commands by googling them if you’re not sure what they do. And if you need to delete files to save space, use an app like CleanMyMac X to do it. It’s much safer!