few things

.bash_profile

# ~/.bash_profile
# ...
# Docker cleanup
dcleanup(){
    docker rm -v $(docker ps --filter status=exited -q 2>/dev/null) 2>/dev/null
    docker rmi $(docker images --filter dangling=true -q 2>/dev/null) 2>/dev/null
}

# Git cleanup
gitcleanup() {
    git fetch -p && for branch in `git branch -vv | grep ': gone]' | gawk '{print $1}'`; do git branch -D $branch; done
}