runs a shell on a docker container, searching it by name

dockshell

# dockshell container [command] # Runs bash (or command) in container specified by name
dockshell(){
    default='bash'
    if [ $# -gt 0 ]; then
        cmd=${2:-$default}
        C_ID=$(sudo docker ps | awk '{if ( $2 == "'$1'") print $1}')
        sudo docker exec -it $C_ID $cmd
    else
        echo "ERROR. Need container name"
    fi
}
# Bash completion
_dockshell(){
    local cur prev opts
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"
    opts="$(sudo docker ps | awk '{print $NF}'|grep -vx NAMES)"

    COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
    return 0
}
complete -F _dockshell dockshell