Thanks to its Unix-based core, Mac provides multiple ways to accomplish most common tasks, including recovering deleted files, which can be done using Finder or Mac Terminal commands. This article focuses on the latter method and describes everything you need to know about Mac Terminal when it comes to data recovery.
How to Launch Terminal on Mac?
Terminal is just another app on Mac computers (there are many alternative terminal emulators you can choose from), which means that you can launch it like any other app:
Open Finder, go to /Applications/Utilities, double-click Terminal.
Press Command-Space to open Spotlight, type “terminal”, and hit Enter.
Invoke Launchpad (from the Dock or by pressing F4), type “terminal”, click Terminal.
How Does Terminal Work?
You can think of Terminal as the gateway to the Unix underbelly of Mac computers. It provides a command line interface to the operating system, allowing you to interact with your computer by typing commands on your keyboard, instead of using your mouse to interact with the regular graphical interface.
Most regular users never use Terminal because Mac’s graphical user interface is good enough for most computing needs. However, there are some hidden settings that can be accessed only via the command line. Additionally, certain operations can be executed far more efficiently (or even completely automated) with a few simple commands than a series of mouse clicks.
If you’ve never used Terminal on Mac before, it’s completely natural to feel somewhat intimidated by it, but there’s really nothing to be afraid of. All you need to do is follow our instructions on how to use the undelete command to recover deleted files using Mac Terminal.
How to Recover Deleted Files Using Mac Terminal?
When you delete a file on a Mac, the file is either moved to Trash or permanently deleted. In this section, we explain how you can recover both files that are in Trash and files that are permanently deleted using Mac Terminal.
Recover Files from Trash Using Mac Terminal
Recovering files from Trash via the command line is easy because Trash is really just a special folder from which you can copy any file with a simple command.
Step 1. Open the Security & Privacy Preferences pane of System Preferences and select the Privacy tab.
Step 2. Unlock the interface by clicking the lock icon, choose Full Disk Access from the list of services on the left, and drag and drop the icon for Terminal into the list.
Step 3. Launch Terminal.
Step 4. Type cd .Trash and hit Enter to navigate to the Trash folder.
Step 5. Type ls -al ~/.Trash and hit Enter to view the content of the Trash folder.
Step 6. Type mv filename ../ and hit Enter to move a specific file to your home folder (replace filename with the name of the file you want to recover).
Step 7. Type Quit and hit Enter to close Terminal.
Recover Files Deleted with “rm” Command
The rm command can be used to delete any file directly from Terminal. Because files deleted using the rm command don’t go to the Trash folder, you can’t recover them using the above-described method.
Step 1. Install Homebrew by pasting the following command in Terminal:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
Step 2. Type brew install testdisk and hit Enter to install TestDisk (PhotoRec is included in the TestDisk package).
Step 3. Type sudo photorec and hit Enter to launch PhotoRec.
Step 4. Select your hard drive.
Step 5. Select your partition. Choose the No partition option to scan the whole drive.
Step 6. Select the right file system and press Enter. PhotoRec will automatically suggest what it believes to be the right option.
Step 7. Select a destination to save the recovered files to and press C on your keyboard when done.
Recover Files from a Time Machine Backup
You can actually recover deleted files from a Time Machine backup without using the graphical interface, which may come in handy in situations when you can’t use your touchpad or mouse or interact with the graphical user interface for some other reason.
Step 1. Use the Privacy tab in the Security and Privacy preference pane to add Terminal to the list of applications with Full Disk Access like we explained in the first solution.
Step 2. Launch Terminal.
Step 3. Type tmutil listbackups to list all available Time Machine backups.
Step 4. Type tmutil restore ‘$BACKUP_PATH/$ORIGINAL_PATH’ ‘$DESTINATION’ to restore your file.
- $BACKUP_PATH = the location of your Time Machine backup.
- $ORIGINAL_PATH = the location of the deleted file.
- $DESTINATION = the place where you want to recover the deleted file.
As you can see, it’s possible to recover deleted files using Mac Terminal but only in certain situations. Because undeleting files from Terminal is far from easy, regular Mac users should first try a data recovery application with a graphical user interface and experiment with undelete commands only if it doesn’t work.