Jinja2 template, generating hass-cli commands, to make renaming Z-Wave entities for example a lot easier

entity_rename_find_replace.j2

{%- set find    = "shenzhen_neo_electronics_co_ltd_water_leakage_detector" -%}
{%- set replace = "boiler_water_leak_sensor" -%}

{%- for item in states -%}
{% if find in item.object_id %}
hass-cli entity rename --name "{{ item.object_id.replace(find, replace).replace("_", " ")|title }}" {{ item.entity_id }} {{ item.entity_id.replace(find, replace) }}
{%- endif -%}
{%- endfor -%}

entity_rename_go.sh

#!/bin/bash

eval "$(hass-cli template ./entity_rename_find_replace.j2)"