Useful Commands

Docker

Freeing up space

1. Start all used containers
2. Run:

   docker system prune --force

Printer

Scanning

pnpm install -g node-hp-scan-to

Auto-scan an A4 paper from the ADF:

node-hp-scan-to adf-autoscan --address <local_ip_address> --width 2450 --height 3475 --directory <output_folder>

Python

Upgrading venv Versions

Delete then recreate the venv.

Images

WebP

Keep Color Profile

To keep all metadata, including rotation and the embedded color profile, run:

cwebp -metadata all input.jpeg -o output.webp

Networking

Ports

Free Up Ports

To check what's using a TCP port, run:

lsof -t -i tcp:<port>

In order to free up that port, kill the process using it by running:

kill -9 <PID>