Setting up docker with solr

setup.sh

#!/bin/sh
option="${1}"
container=$2
name=$3
sample=$4
case ${option} in
  -f) FILE=${name}
      echo "Pulling solr 6.4 from dockerhub"$'\n'
      docker pull solr:6.4
      echo "Connecting and transferring files to docker image"$'\n'
      docker run --name $container -d -p 8983:8983 -t -v $HOME/Documents/Github/solr/data/       $sample:/opt/solr/mydata/$sample solr:6.4
      docker exec -it --user=solr $container solr create_core -c $FILE
      docker exec -it --user=solr $container post -c $FILE mydata/$sample
     ;;
 -ls)
 a=$(docker container ls | wc -l)
 if [ $a -eq 1 ];
   then
       echo "No Containers to list"
   else
       echo "List of docker images"$'\n'
       docker image ls
       echo $'\n'
       echo "List of docker containers"$'\n'
       docker container ls
  fi
      ;;
   -rm)
   echo "Removing and stopping all Containers"$'\n'
   a=$(docker container ls | wc -l)
   if [ $a -eq 1 ];
   then
       echo "No Containers in docker"
   else
   docker stop $(docker ps -a -q)
   docker rm $(docker ps -a -q)
   fi
   ;;
  *)
     echo "`basename ${0}`:usage: [-f corename file ] | [-ls list of directories] | [-rm Remove  all containers and images] "
     ;;
esac