Script that logs into new docker shell

launchdocker.sh

#!/bin/bash
/usr/bin/docker run -ti ubuntu

IFS=$'\n'
TODAY=$(/bin/date +"%Y-%m-%d")

/usr/bin/docker ps -a -f ancestor=ubuntu --format "{{.ID}} {{.CreatedAt}} {{.Status}}" | while read cont
do
        IFS=' '
        array=($cont)

#        if [[ ${array[1]} < $TODAY ]] && /bin/grep -q "Exited" <<<$cont
        if /bin/grep -q "Exited" <<<$cont
                then
#                /bin/echo deleting container ${array[0]}
                /usr/bin/docker rm ${array[0]}
                fi
done