### Unleashing the Potential of Terminal: Lesser-Known Features for Mac Users
The Terminal app on macOS serves as a robust tool enabling users to engage with their system via command-line entries. While numerous users know basic commands, there exists a wealth of lesser-known features that can boost efficiency and security. This article delves into some of these hidden treasures, offering practical uses for everyday Mac users and enterprise administrators alike.
#### Caffeinate Your Mac
When downloading sizable files or executing processes that necessitate your Mac to remain active, the `caffeinate` command becomes essential. Merely launch Terminal and enter:
“`bash
caffeinate
“`
This command ensures your Mac stays awake indefinitely. To indicate a specific duration, use:
“`bash
caffeinate -t
“`
For instance, to maintain your Mac’s wakefulness for one hour, type:
“`bash
caffeinate -t 3600
“`
#### Password-Protect a Compressed Folder
Creating a secure, password-encrypted folder is simple through Terminal. You can compress a folder into a .dmg file with AES-128 encryption by executing the following command:
“`bash
hdiutil create -encryption -stdinpass -srcfolder ~/Desktop -volname “[Folder Name]” -format UDZO ~/Desktop/[Compressed File].dmg
“`
This approach guarantees that anyone receiving the file will require a password to access its contents, offering a secure method for sharing sensitive data.
#### Quickly Check and Update Software
Keeping your software current is vital for security. You can swiftly check for available updates using:
“`bash
softwareupdate -l
“`
To apply updates, enter:
“`bash
softwareupdate -i “[Title]”
“`
To install all updates simultaneously, simply type:
“`bash
softwareupdate -i -a
“`
#### Auto-Check and Update More Often
By default, macOS looks for updates every seven days. You can adjust this interval via Terminal. To configure daily checks, input:
“`bash
defaults write com.apple.SoftwareUpdate ScheduleFrequency -int 1
sudo softwareupdate –schedule on
“`
To enable automatic downloads and installations of updates, use:
“`bash
sudo defaults write /Library/Preferences/com.apple.SoftwareUpdate AutomaticDownload -bool true
sudo defaults write /Library/Preferences/com.apple.commerce AutoUpdateRestartRequired -bool true
“`
#### Clear DNS Cache
If you experience sluggish page loads or connectivity troubles, clearing your DNS cache can assist. Execute the following commands in Terminal:
“`bash
sudo killall -HUP mDNSResponder
sudo killall mDNSResponderHelper
sudo dscacheutil -flushcache
“`
These commands will refresh the DNS cache, possibly alleviating connectivity issues.
#### Create an ASCII Art Banner
For a touch of fun, you can generate ASCII art banners in Terminal. Just type:
“`bash
banner -w 40 9to5Mac
“`
Substitute “9to5Mac” with any word or phrase of your choice, and modify the width as needed.
### Conclusion
These Terminal commands not only boost your efficiency but also enhance your Mac’s security. Whether you’re overseeing a network of devices or simply aiming to refine your personal workflow, mastering these features can lead to a substantial impact. Discover these commands, and feel free to share your own tips and techniques!
