move replica, unassigned shards that match specific shard number to another node

unassigned.sh

#!/bin/bash
# danger! danger!
# 

IFS=$'\n'
for line in $(curl -s 'localhost:9200/_cat/shards' | fgrep '0 r UNASSIGNED'); do
#for line in $(curl -s 'localhost:9200/_cat/shards' | fgrep 'UNASSIGNED'); do
  INDEX=$(echo $line | (awk '{print $1}'))
  SHARD=$(echo $line | (awk '{print $2}'))
  SHARD_TYPE=$(echo $line | (awk '{print $3'}))

  curl -XPOST 'localhost:9200/_cluster/reroute' -d '{
     "commands": [
        {
            "allocate": {
                "index": "'$INDEX'",
                "shard": '$SHARD',
                "node": "data3-sjc1",
                "allow_primary": true
          }
        }
    ]
  }' >> ./data3.json

# a way I can comment out above and then run
# the loop with these conditions to see what is primary
# versus what is replica
#
#  if [ "Z${SHARD_TYPE}" == "Zr" ]
#  then
#    echo "${INDEX} ${SHARD} [replica]"
#  elif [ "Z${SHARD_TYPE}" == "Zp" ]
#  then
#    echo "${INDEX} ${SHARD} [primary]"
#  else
#    exit 99
#  fi
done

I use the Zp == Zp (adding additional character) as a simple safety net a bit.. just my caution.