# How to find out list of indices in elastic which are not having aliases

**URL:** https://discuss.elastic.co/t/how-to-find-out-list-of-indices-in-elastic-which-are-not-having-aliases/161797
**Category:** Elasticsearch
**Created:** [December 21, 2018, 7:33am UTC](https://discuss.elastic.co/t/how-to-find-out-list-of-indices-in-elastic-which-are-not-having-aliases/161797 "2018-12-21T07:33:35Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![prabhakar\_talari](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/prabhakar_talari/32/46469_2.png) [@prabhakar\_talari](https://discuss.elastic.co/u/prabhakar_talari)
#### Post date: [December 21, 2018, 7:33am UTC](https://discuss.elastic.co/t/how-to-find-out-list-of-indices-in-elastic-which-are-not-having-aliases/161797/1 "2018-12-21T07:33:36Z")

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Hi All,

Could any one help me how to find out list of indices which are not having aliases

Thanks in advance !

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### Author: ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [December 21, 2018, 9:33am UTC](https://discuss.elastic.co/t/how-to-find-out-list-of-indices-in-elastic-which-are-not-having-aliases/161797/2 "2018-12-21T09:33:41Z")

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May be use [https://www.elastic.co/guide/en/elasticsearch/reference/current/cat-alias.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/cat-alias.html) and [https://www.elastic.co/guide/en/elasticsearch/reference/current/cat-indices.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/cat-indices.html) and try to find which ones do not appear in the former?

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### Author: ![klof](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/klof/32/31590_2.png) [@klof](https://discuss.elastic.co/u/klof)
#### Post date: [December 21, 2018, 9:44am UTC](https://discuss.elastic.co/t/how-to-find-out-list-of-indices-in-elastic-which-are-not-having-aliases/161797/3 "2018-12-21T09:44:51Z")

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I believe this can be done in 2 steps :

1. Get the list of the indices  
GET \_cat/indices
2. Get the list of indices having an alias  
GET \_cat/aliases

Then you can create an array with the difference between the 2 previous results.

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### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [January 18, 2019, 9:44am UTC](https://discuss.elastic.co/t/how-to-find-out-list-of-indices-in-elastic-which-are-not-having-aliases/161797/4 "2019-01-18T09:44:54Z")

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