Manage Logstash indices, remove data of specific type

Logstash_index_management.sh

#!/bin/sh

indices="$(curator show indices --all-indices)"
_type="activitylog-syslog"

opt=$1

if [ ! "$1" ];then opt='False';fi

case $opt in
    '-d')
    # Delete all data in all indices of the given type
    for index in $indices; do
        echo -n "> Deleting data -> "
        curl -XDELETE 'http://localhost:9200/'$index'/_query?q=_type:'$_type
        echo
    done
    ;;

    '-q')
    # Query all data for a given type in all indices
    for index in $indices; do
        echo -n "> Querying data -> "
        curl -XGET 'http://localhost:9200/'$index'/_query?q=_type:'$_type
        echo
    done
    ;;

    '-D')
    # Completely remove all data and type from indices
    for index in $indices; do
        echo -n "> Deleting type: $_type -> "
        curl -XGET 'http://localhost:9200/'$index'/'$_type
        echo
    done
    ;;

    *)
    echo 
    echo "Tool for logstash indices management"
    echo
    echo "Usage:"
    echo "$(basename $0) indice_name"
    echo
    echo "Options:"
    echo
    echo "-d\tDelete all data in all indices of the given type"
    echo "-D\tCompletely remove all data and type from indices"
    echo "-q\tQuery all data for a given type in all indices"
    echo
    ;;
esac