This post will show you how to delete dmg disk image automatically – it will delete a mac disk image file (dmg) when you eject it from your mac
There is an easier way to do the following (just drag the mounted dmg file to the trash, but this is a nice solution too)
I found the instructions on lifehacker but for redundancy I’ve copied the instructions here
(it also makes it easier for me to find them later!)
Here are the instructions:
Open up the Automator application and select “Service”.
Change the top two dropdown menus to receive “No Input” from the “Finder”.
In the left sidebar, drag the “Run AppleScript” action into the right pane. Copy the following code into the box:
tell application "Finder" set selection_list to selection if (count selection_list) < 1 then display dialog Â¬ "Please select a volume mounted from a disk image." with title Â¬ "No Selection Found" with icon stop Â¬ 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 Â¬ "Please select a volume mounted from a disk image file." with title Â¬ "Selection is not a Disk Image" with icon stop Â¬ 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 Â¬ "The selected volume does not appear to be a Disk Image." with title Â¬ "Could not find Disk Image" with icon stop Â¬ 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
Save the service as whatever you want (like “Eject & Delete DMG”) and exit Automator.
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