How To Install/Update CPAN on MacOS Mojave with fatal error: ‘EXTERN.h’ file not found

Author: , June 12th, 2019

The Problem Tried to install the latest version of cpan and got stuck. Tracked it down to the dependency module Mac::SystemDirectory which was failing to build:

The Solution Use the MacOS installer command to deploy the needed files:

The, rerunning the cpan install works:

How To Get Sonos Working on MacOS Mojave

Author: , June 6th, 2019

Sonos was running just fine oon my MacOS Mojave iMac, then I had to force-quit it due to a system freeze. The Sonos app REFUSED to start, no matter what I tried, including uninstall/reinstall, full scrub of all files located, uninstaller software, reboots, cache cleaning and reboot with Onyx – NOTHING worked, and i was […]

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 Fix rsync Packet Corrupt Errors

Author: , May 10th, 2019

I was getting rsync errors from one source host:

Finally tracked it down to the application “Little Snitch”. Needed to fully uninstall it and reboot to get the problem solved.

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

How To Disable Adobe Daemons Using launchctl on MacOS

Author: , November 18th, 2018

I installed an old version of Adobe software on my new Mac and as usual, it installed some daemons that are undesirable. Here is how I got rid of them via the Terminal. Note: Adobe installs daemons in the user context, so do this as your regular user login, not as root. shell> launchctl list […]

How To Change the root Password on MacOS High Sierra

Author: , November 28th, 2017

Launch System Preferences Select Users & Groups Select Login Options Select Join next to Network Account Server Select Open Directory Utility Click the lock and enter your password to make changes In the menu bar of Directory Utility, select Change Root Password Create a strong, unique password

How To Clean Up Lost Disk Space in MacOS High Sierra

Author: , October 12th, 2017

Reposted from https://mcbguru.blog/2017/10/12/macos-high-sierra-disk-space/ The new APFS creates snapshots during local Time Machine backups, and this can mean, especially if you’be been dealing with some large files, that when you delete them and empty the wastebasket, you don’t get your disk space back. The key is to look at your local backups, and the easiest method […]

How To Associate All Log Files with MacVim

Author: , April 12th, 2017

You can associate a file extension with an app (such as MacVim) via the “Info dialog”. Just select the file and hit Cmd-i, then go to the “Open with” tab, select app and hit “Change all…”. This will change the default application for that file type.