exectty.sh

#!/bin/bash

# Standard `docker exec -t` doesn't create a full tty, and has no $TERM set.
# This creates problems for me sometimes (I like the `clear` command, and
    # psql complains a bit if the client is not a functional terminal).
# I do the command below enough that I made this script.
# Pass it the name or ID of a running container, and Bob's your uncle.


while true;
do
    case $1 in
        -e)
            cid=$(docker ps | grep $2 | grep -v pause | cut -f 1 -d' ')
            docker exec -it $cid script -f /dev/null -c "export TERM=xterm && /bin/bash"
            break
        ;;
        *)
            cid=$(docker ps | grep $1 | grep -v pause | cut -f 1 -d' ')
            echo $cid; break
        ;;
    esac
done

So, I put a symlink to this in my $PATH, and then I can go exectty postgres or whatever and I'm in with a more functional terminal than bare exec /bin/bash gives you, and I don't even have to look up the container ID.