Mac Can I Delete Dmg Files

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One of the aspects where Macs differ from Windows PCs the most is when it comes to installing applications. On Macs, you need mount a disk image and then unmount it and delete once the installation is finished, which can be a bit of a hassle, especially if you have to test many apps in a short amount of time.

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How to Open a DMG File in Windows Martin Hendrikx Updated April 2, 2018, 10:29pm EDT Whether you are an avid Mac programmer using a Windows PC, or you just found a DMG file on your Windows machine, it can be useful to know what it is and how to open it. Aug 17, 2011 Once you have installed it you do not need the.dmg file. #3 The update is already installed so you can delete the dmg. And just for clarification, think of the.dmg as a discardable disk. You have to load it up (you see the drive on the desktop) and you can access the files on it.

Can I Delete Dmg Files From My Mac

Thinking of that, this time we’ll share a couple of neat little workflows that you can implement on your Mac using Automator. With any of them, every time you are done with an app installation on your Mac, you’ll be able to eject/unmount and delete the disk image in just a couple of clicks.

Let’s get started with how to set up these nice Automator workflows.

Delete DMG Files Automatically When You Eject Them

Step 1: Open Automator and choose to create a new document. From the available document types that show up on the dialog box, select Service.

Step 2: At the top of the right panel, make sure to choose from the dropdown menus the options ‘no input’ and ‘Finder’ respectively so that the end result is as the one pictured below.

Step 3: Next, on the left panel of Automator, search for the Run AppleScript action and drag it to the right panel. An AppleScript window will show up with some placeholder code in it.

Delete that code and instead copy and paste the following one in the script box:

tell application 'Finder'
set selection_list to selection
if (count selection_list) < 1 then
display dialog ¬
'Please select a volume mounted from a disk image.' with title ¬
'No Selection Found' with icon stop ¬
buttons ['OK'] default button 1
return
end if
set my_selection to item 1 of selection_list
set my_kind to kind of my_selection
set my_name to name of my_selection
if my_kind is not 'Volume' then
display dialog ¬
'Please select a volume mounted from a disk image file.' with title ¬
'Selection is not a Disk Image' with icon stop ¬
buttons ['OK'] default button 1
return
end if
set volume_list to paragraphs of (do shell script 'hdiutil info   grep ^/dev/disk   grep -o '/Volumes/.*')
set source_list to paragraphs of (do shell script 'hdiutil info   grep ^image'-'alias   grep -o '/.*')
set match_found to false
repeat with v from 1 to (count volume_list)
if '/Volumes/' & my_name = item v of volume_list then
set match_found to true
exit repeat
end if
end repeat
if match_found is not equal to true then
display dialog ¬
'The selected volume does not appear to be a Disk Image.' with title ¬
'Could not find Disk Image' with icon stop ¬
buttons ['OK'] default button 1
return
else
set my_source to POSIX file (item v of source_list) as alias
move my_source to the trash
eject my_selection
--reveal my_source
end if
end tell

Step 4: Now save this Automator service and give it a name that is easy to remember.

Step 5: Once this is done, every time you have a disk image mounted, all you have to do is select it and on the Finder menu select Services and then Eject and Delete (or whatever you named the service you just created) and the disk image file will be both unmounted and deleted with one click.

Now, let’s take a look at another Automator workflow that achieves the same objective doing exactly the opposite.

A net has no effect on creatures that are formless, or creatures that are Huge or larger. A creature can use its action to make a DC 10 Strength check, freeing itself or another creature within its reach on a success. Dealing 5 slashing damage to the net (AC 10) also frees the creature without harming it, ending the effect and destroying the net. Adding another dmg dice to a weaopn dnd 5e.

Eject DMG Files Automatically When You Drag Them To the Trash

As you can see from the title, this Automator workflow allows you to achieve the same purpose, except that in reverse, so you can avoid this message every time you drag to the trash a mounted DMG file.

Here are the steps to create it.

Step 1: Create a new document in Automator and select Folder Action from the available document types.

Step 2: At the top of the right panel, select Other… from the dropdown menu. Then, on the dialog box that pops over, type ~/.Trash to work with that folder.

Step 3: Next, on the left panel, drag the Run Shell Script action to the right panel. On the two dropdown menus that show up, select /usr/bin/python and as arguments respectively.

Step 4: Replace the placeholder script in the script box with the following one:

import string, os, sys
lines = os.popen('hdiutil info').readlines()
should_eject = False
for line in lines:
if line.startswith('image-alias'):
path = line.split(':')[1]
image_path = path.lstrip().rstrip()
if image_path in sys.argv:
should_eject = True
elif line.startswith('/dev/') and should_eject is True:
os.popen('hdiutil eject %s' % line.split()[0])
should_eject = False
elif line.startswith('###'):
should_eject = False

Once done, save the Folder Action and quit Automator. Now, whenever a DMG file is mounted, all you’ll have to do is drag it to the Trash and it will be unmounted at the same time.

Cool Tip: You can also create keyboard shortcuts for these actions by following the instructions at the end of this tutorial.

And there you go. Two different workflows to enable a very convenient feature on your Mac. Now all left to do is just choose which one you find more convenient. And the best of all? In both cases you’ll learn a bit more about Automator. Enjoy!

Also See#automation #OS X

Did You Know

In 1835, Thomas Davenport developed the first practical EV.

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FonePaw - Solution - Eraser - Delete Useless iTunes Files for Mac

Mac is winning fans over the planet. Compared to other computers/laptops running window system, Mac has a more desirable and simplistic interface with strong security. Though it's hard to get used to using a Mac in the first place, it becomes easier to use than others. However, such an advanced device might goes disappointing sometimes especially when it's running slower and slower.

At this time, I would suggest you to 'sweep up' your Mac like the way you free up storage of your iPhone. In the article, let me show you how to delete iTunes backup and unwanted software update packages so as to free up storage and speed up. You should know that Mac will not clear up such files for you, so you have to do it yourself at regular times.

Part 1: How to Delete iTunes Backup Files Manually?

An iTunes backup usually takes up at least 1 GB of storage. In some cases, it could be up to10+ GB. Moreover, Mac will not clear those files for you, so it's of importance to remove such backup files when they become useless. Below are the instructions.

Step 1. Launch 'iTunes' app on your Mac.

Step 2. Head to 'iTunes' menu and click 'Preferences' option.

Step 3. Select 'Devices' on the window, then you can view all backups on the Mac.

Step 4. Decide which ones to be deleted according to the backup date.

Step 5. Choose one and click 'Delete Backup'.

Step 6. When be asked whether to delete the backup, please choose 'Delete'.

Part 2: How to Remove Unnecessary Software Update Packages?

Do you get used to upgrading iPhone/iPad/iPod via iTunes on Mac. Then, there are probably stored a plenty of software update files on Mac depleting precious space. Normally speaking, a firmware package is about 1 GB. That's no wonder why your Mac is slowing down. Let's find them out and get them deleted.

Step 1. Click and launch 'Finder' on Mac. Unfortunately dmg has stopped android.

Step 2. Hold down 'Option' key on keyboard and go to 'Go' menu > 'Library'.

Note that only through pressing down 'Option' key can you access 'Library' folder.

Step 3. Scroll down and click on 'iTunes' folder.

Step 4. There are 'iPhone Software Updates', 'iPad Software Updates' and 'iPod Software Updates' folders. Please browse through each folder and check for a file with an extension as 'Restore.ipsw'.

Step 5. Manually drag the file into the 'Trash' and clear the trash.

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Part 3: How to Remove Unwanted iTunes Files with One Click?

If you're tired of the complex steps above, here you may try MacMaster, which is available for free download. It's a managing app with powerful functions but simple to use. This nice tool is able to help you get rid of such unnecessary files. Action speaks louder than words. Let's take a look of how it works.

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Step 1. Launch MacMaster on Mac

You have to download and install MacMaster from the website at first. Then, click 'Launchpad' and select 'MacMaster' to run the app. When running, a simple window shows up. You can check for 'CPU Usage' and 'Network Usage' directly on the window. Or, you're also able to check the memory usage with ease.

Can I Delete Dmg Files On Mac

Step 2. Find Unwanted iTunes Files

To scan out unwanted iTunes files, choose 'iTunes Junk' and select 'Scan' button to find out iTunes junks on your Mac.

Step 3. Remove Redundant iTunes Files

MacMaster will display redundant files on the right side like 'iTunes Cache', 'iTunes Backups', 'iOS Software Updates' and 'iTunes Broken Download'. Select 'iTunes Backups' and check for backup files or others. After that, select all iTunes data that you don't need click 'Clean' to get them off. If you have done it successfully, you will see 'Zero KB' next to 'iTunes Junks'.