Delete all documents from an Elasticsearch index

es-clear.sh

#!/bin/sh

INDEX=$1

# optionally limit the deletion to a specific type
TYPE=$2

BASE_URL=http://localhost:9200

if [ "$#" -eq 1 ]; then
    URI_PATH=$1
elif [ "$#" -eq 2 ]; then
    URI_PATH=$1/$2
else
    echo "USAGE: es-clear.sh <index> [type]"
    exit 1
fi

curl -XPOST http://localhost:9200/$URI_PATH/_delete_by_query -d '{
    "query": { 
        "match_all": {}
    }
}'