Test Network Quality from macOS with results similar to Fast.com
Excellent tool to quickly test the current network’s download and upload speeds. % networkQuality ==== SUMMARY ==== Upload capacity: 10.767…
Tech Notes (34)
Time Machine backups ignoring NPM modules
My Time Machine backups started taking an insane amount of time to complete. After some research, I was able to…
Send Docker container traffic through second VNIC on Oracle Cloud Compute Instances
I have a need to route all traffic to a running Docker conainer through a second network interface card (NIC)…
Grep stderr to suppress warnings in crontab entry
I needed to setup a crontab entry to restart a node process every week after Let’s Encrypt renewed my certificate.
Converting any binary to base64 using FileReader and Blob
To base64-encode a Uint8Array with arbitrary data (not necessarily UTF-8) using native browser functionality: const base64_arraybuffer = async (data) =>…
Locking and Unlocking a file in macOS from the cli
To lock the file: chflags uchg {file path} To unlock the file: chflags nouchg {file path} Keywords: lock, unlock, command…
Command line batch file rename with regex
for file in A2B*.bif; do mv "$file" "${file//A2B/a02b}"; done make lowercase: for folder in *; do mv -nv "$folder" "`echo…
Make iPhone HDR video not washed out in macOS and Photos
Install macOS iMovie 10.2 or later or iOS iMovie 3.0 or later Bring the clip into a new iMovie project…
git get list of changed files
git diff --name-only <SHA, tag start> <SHA, tag end> Or with the actions performed: git diff --name-status <SHA, tag start>…
Using `curl` to check a TLS certificate on a websocket (`ws` or `wss`)
Checks the TLS cert on the connection: curl -v \ --insecure \ --include \ --no-buffer \ --header "Connection: Upgrade" \…