Quick reference for personal needs

docker

# Remove all stopped containers.
docker rm $(docker ps -a -q)

# Remove all untagged images
docker rmi $(docker images | grep "^<none>" | awk "{print $3}")

node

# node.js
# list first level of global dependencies
npm -g ls --depth=0

python

# python
# run web server on specific port
python -m SimpleHTTPServer 8000