# Detect the last character of a field

**URL:** <https://discuss.elastic.co/t/detect-the-last-character-of-a-field/54731>\
**Category:** Logstash\
**Created:** [July 5, 2016, 12:39pm UTC](https://discuss.elastic.co/t/detect-the-last-character-of-a-field/54731 "2016-07-05T12:39:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![noemie](https://avatars.discourse-cdn.com/v4/letter/n/ce73a5/32.png) [@noemie](https://discuss.elastic.co/u/noemie)\
**Post date:** [July 5, 2016, 12:39pm UTC](https://discuss.elastic.co/t/detect-the-last-character-of-a-field/54731/1 "2016-07-05T12:39:24Z")

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Hello,

I'd like to detect of the last character of a field is "/" so I can know whether I'm accessing a directory or a file. Is it possible?

Thanks for your help,  
Noémie

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<div class="post-metadata">

**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\
**Post date:** [July 5, 2016, 1:30pm UTC](https://discuss.elastic.co/t/detect-the-last-character-of-a-field/54731/2 "2016-07-05T13:30:29Z")

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Use a regexp conditional.

```nohighlight
if [fieldname] =~ /\/$/ {
  ...
}

```

[https://www.elastic.co/guide/en/logstash/current/event-dependent-configuration.html#conditionals](https://www.elastic.co/guide/en/logstash/current/event-dependent-configuration.html#conditionals)

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 4:49am UTC](https://discuss.elastic.co/t/detect-the-last-character-of-a-field/54731/3 "2017-07-06T04:49:28Z")

</div>

Closed on July 6, 2017, 4:49am UTC