One-Liners in Python

Start a HTTP server:

python -m http.server 8080 \
   --directory /tmp/ \
   --bind 127.0.0.1  # Defaults to all interfaces; supports IPv6

Start a FTP server:

python -m pyftpdlib \
   --port 2121 \
   -d /tmp/ \
   -u someuser \
   -P somepass

JSON Formatting:

python -m json.tool --sort-keys --json-lines < data.jsonl