How To Restart a Hung Top Menu Bar in MacOS

Author: , April 23rd, 2021

Ever get the spinning beachball when trying to access the top menu on your Mac? SOLUTIONS Use the GUI Open the Activity Monitor application Select All Processes from the View menu Click on the SystemUIServer process, then click Force Quit. ~or~ Via CLI In Terminal, execute killall SystemUIServer

How To Prevent Spotlight From Indexing External Drives on MacOS

Author: , February 26th, 2021

On MacOSX 10.10.5 Yosemite, I was having trouble with Spotlight preventing the clean eject of an attached hard drive. Using the fuser command allowed me to see that it what the Spotlight-specific mds process preventing the eject.

At first, I tried to disable the indexing via the mdutil command, but that just gave me […]

How To Re-Install MacOS

Author: , October 11th, 2020

Format the new USB flash drive as Mac OS Extended (Journaled) and label it “MyVolume” Click the Mojave Download Link: https://itunes.apple.com/us/app/macos-mojave/id1398502828?ls=1&mt=12 Download the installer package from the App store – it will land in the main /Applications folder. Open Terminal and run:

Full article at Apple Support “How to create a bootable installer for […]

How To Install MySQL on MacOS Using Brew

Author: , April 5th, 2020

As a non-root user:

Make sure your PATH contains /usr/local/bin

How to Remove Skype for Mac

Author: , March 27th, 2020

Quit Skype From your Applications folder, drag the Skype icon into the Trash In the top Finder menu, select Go -> Go to Folder… or press Shift-Command-G to bring up the “Go to the folder” prompt Open ~/Library/Application Support and drag “Skype Helper” to the Trash Open ~/Library/Application Support/Microsoft and drag “Skype for Desktop” to […]

How To Remove the MacOS Quarantine Extended File Attribute for an Entire Directory Tree

Author: , November 24th, 2019

xattr -r -d com.apple.quarantine {dirname} ~or~ xattr -r -d com.apple.quarantine *

How To Read Multiple Lines of User Input from the Command Line in Perl

Author: , October 9th, 2019

Use Case: Export Apple Reminders from MacOS application to cleaned plain text, i.e. remove unwanted spaces, blank lines and square brackets PROCEDURE Click on a single item in the MacOS Reminders app list Select All (either Command-a or use Edit->Select All) Copy (either Command-c or use Edit->Copy) Open Terminal Run cleanme Paste the copied reminders […]

How To Force csshX To Tile In Columns

Author: , May 28th, 2019

I use csshX on a daily basis. The default layout on my screen for three nodes is one column with three rows, one per node. This layout is excellent for visual positioning, but does make it harder to read long output. For this purpose, I start csshX using the column quantity specifier -x and I […]

How To Enable Opening a Terminal Window from the Current Finder Location in MacOS

Author: , February 16th, 2019

As of Mac OS X Lion 10.7, Terminal provides Services for opening a new terminal window or tab at the selected folder in Finder. They also work with absolute pathnames selected in text (in any application). You can enable these services with System Preferences > Keyboard > Keyboard Shortcuts > Services. Look for “New Terminal […]

How To Obtain a Public Key from an AWS .pem Private Key on Linux and Mac

Author: , February 4th, 2019

Use the ssh-keygen command on a computer to which you’ve downloaded your private key .pem file; for example: First, ensure permissions will allow ssh-keygen to work: chmod 600 /path/to/the/file/your-key-pair.pem Then generate an RSA public key: ssh-keygen -y -f /path/to/the/file/your-key-pair.pem > your-key-pair.pub