Ubuntu 16.04 PHP PHP 7.0 PHP 7.1
How to upgrade from PHP 7.0 to PHP 7.1 on Ubuntu 16.04 LTS (Xenial)
yum CentOS package management linux system administration
A quick reference for Yum - the CentOS package manager.
KDE Wallet KDE SSH Keys ssh-agent ksshaskpass Kubuntu
How to setup KDE Wallet for use with SSH keys with ssh-agent and ksshaskpass.
PHP PHP functions quick tips web development
A better way to perform intermediate to complex string replace routines in PHP.
linux KDE Kubuntu Kubuntu 18.04
Notes on setup and preferences for Kubuntu 18.04
Quick shell script snippet to check if a given program is installed.
A quick way to change the background color of an SVG image defined in CSS using the mask property.
HTML HTML Validation jQuery Snippet
Quick workaround to compensate for a fixed header/nav element obscuring the display of native HTML validation messages.
PHP CLI PHP Scripting Boilerplate
Options for creating quick PHP command line scripts
Mac command line Perl Utilities - rename Perl Homebrew Perl utilities
Using the Perl 'rename' command to batch rename a group of image files on the MacOS command line with Homebrew package manager.
Firefox Firefox Extensions Tree Style Tabs
Add some CSS to hide the default top tab bar and other style customzations for use with the Tree Style Tabs Firefox extenstion.