I recently wanted to test a web app written in Node.js and exposed via fixed port. The instructions asked me to install Node.js locally, which I resist! So, here is how I built my Docker container to run the code.
I sometimes need to search a huge CSV file (13 MB), containing 21,000 rows and roundabout 40 columns, which Numbers takes half a minute to open. All I need to do is search and display the results of a few columns only... so I wrote a bash script to do this for me - and I was quite specific in that I wanted the results in color!
I got a new 2 TB external disk - "yay" - and wanted to use it for both on my Windows desktop and for Time Machine backups. Immediately thought to format it as exFAT but quickly came to realize Time Machine does not support exFAT! Fortunately, there is a workaround...
Recently I needed to analyze some JSON data. Now, I'm no data scientist, so I wanted to convert my JSON data to comma separated (CSV) and "flatten" the data... just so I could use the data in Excel.
And Merry Christmas and Happy New Year!
Microsoft PowerPoint 2016 for Mac (aka version 15) has a strange quirk - when I copy and paste images from Preview or most other applications, the image gets copied in Tagged Image File Format (TIFF). The image is practically uncompressed (or possibly minimally compressed), resulting in very, very huge PPTX files! Plus: Removing unwanted font references.
I recently had the "opportunity" to perform some text manipulation to get data from a huge log file into a spreadsheet. I had done this sort of work a long time ago as a developer, but had forgotten over the years. So I decided to compile a text manipulation cheat-sheet for macOS.
There are many open source packages that require the "AMP" stack comprising Apache, MySQL and PHP (hence "WAMP" for Windows-Apache-MySQL-PHP and "MAMP" for macOS-Apache-MySQL-PHP). Since macOS 10.12 Sierra already includes Apache 2.4 and PHP 5.6, here's how to add MySQL 5.7.
Some time ago, I posted about starting Apache automatically when macOS 10.12 Sierra starts, using the
launchctl command to add Apache to the
launchdLaunch Daemon/Agent Manager. For those familiar with Windows, this is akin to managing Windows Services.
Following up on my posts, Compiling Wine 1.9 from scratch on macOS with Retina mode and Creating a wine.app bundle manually, here's my script to automatically download and compile pre-requisite libraries, then download and compile Wine 2.9 32-bit, build the .app bundle, and even include a registry tweak to enable Retina Mode.
I recently downloaded an update to VLC, an open-source media player. The VLC download page, displayed it's SHA-256 checksum - here's how to quickly validate your download by comparing the checksum using the built-in macOS tools.
So I got a new MacBook for work and I didn't realize upon next reboot, the enterprise profile had mandated FileVault encrypt the start up disk, and Apple had recommended an upgrade to macOS Sierra at the same time! You can imagine triggering both simultaneously upon reboot didn't go well at all!
Wine 1.9.22 development (dated Oct 28, 2016) has been released! See the release notes for changes. Alas, I encountered errors trying to compile it "on top" of the Wine 1.9.21 installation, following the steps from my post Compiling Wine from scratch. I spent a whole day searching for the problem, and resolved it as below.
So a couple of days ago, I documented how I compiled Wine 1.9.21 with Retina Mode from scratch on macOS Sierra. After that I though I might as well figure out how to bundle all these files into a
.appbundle, which Finder presents as if it were a single file.
My previous Terminal Tweaks post had an incorrect prompt (PS1) setting, that caused lines to wrap on themselves! This is now corrected, with more details on the color options...
Forget the complex or manual steps, or costly tools to get screen shots scaled down from a retina display. I have a shell script that triggers an interactive window screen capture, saves the screen shot (assumed to be 2x retina display), re-sizes it to 1x and compresses the PNG further! Best of all, it does not require paid software or Automator.