Run Tailscale on macOS Mojave 10.14
I have a photo tool that will not run on any macOS newer than Mojave, so I dug out an…
Tech Notes (36)
Using cURL to get just the HTTP status code
There are a few ways to accomplish getting just the HTTP status code for a URL using cURL, but many…
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…
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" \…
Permanent shell history in zsh
I like to keep a permanent record of my shell commands so I can search back through them later. This…
Get hard drive serial number on RAID with storcli / megaraid
Error message received: ``` Ctl Model Ports PDs DGs DNOpt VDs VNOpt BBU sPR DS EHS ASOs Hlth 0 LSIMegaRAIDSAS9260-8i…
Preserving newlines / line breaks in BASH
declare f="fafafda adffd adfadf adfafd afd" echo $f echo "vs" echo "$f" Output: $./above fafafda adffd adfadf adfafd afd vs…
Hide object keys when console.log-ging in JavaScript
When doing a console.log on an object, you can overwrite the inspect prototype key to hide anything you don’t want…
Git search for filename across all branches
git log --all --name-only --pretty=format:%H -- {glob} example: git log --all --name-only --pretty=format:%H -- index*
Disable macOS reopen all windows on restart from the cli
defaults write com.apple.loginwindow TALLogoutSavesState -bool false
Docker error on CentOS with `noexec` `/tmp`
Error you get running docker: docker-compose: error while loading shared libraries: libz.so.1: failed to map segment from shared object: Operation…
bash error "-bash: complete: nosort: invalid option name"
For me, this was due to an incompatible version of complete being used with the WireGuard wg and wg-quick commands…