2017-02-20
docker (for mac) gc
docker rm $(docker ps -q -f 'status=exited')
docker rmi $(docker images -q -f "dangling=true")
2017-02-09
curl only shows headers via http://te2u.hatenablog.jp/entry/2015/08/04/001554
curl -s -D - http://example.com -o /dev/null
-s : silent mode -D : show headers -o : out responcebody to…
2017-02-07
rm under s3 bucket
aws s3 rm s3://bucket-name/ --recursive