Due to use of double-quotes ``docker ps`` was executed when the aliases
were loaded and as a consequence ``dklcip`` would always show IP of a
container that was last then instead of at runtime.
This changes the alias to use single quotes which fixes that.
It also changes the alias to use docker's ``--format`` option so
there's no need of parsing the output using grep and cut.
The docker images subcommand was returning all columns due to unescaped
'$3' in awk filter. This was throwing a lot of errors as rmi tried to
remove non-existent images.
In any case docker images has a flag to filter and only show dangling
image IDs which makes this simpler.
Dylan Semler
jitakirin
Kevin S. Clarke