terraform/website/docs/language/functions/trim.mdx

---
page_title: trim - Functions - Configuration Language
description: >-
  The trim function removes the specified set of characters from the start and
  end of

  a given string.
---

# `trim` Function

`trim` removes the specified set of characters from the start and end of the given
string.

```hcl
trim(string, str_character_set)
```

Every occurrence of a character in the second argument is removed from the start
and end of the string specified in the first argument.

## Examples

```
> trim("?!hello?!", "!?")
"hello"

> trim("foobar", "far")
"oob"

> trim("   hello! world.!  ", "! ")
"hello! world."
```

## Related Functions

* [`trimprefix`](/language/functions/trimprefix) removes a word from the start of a string.
* [`trimsuffix`](/language/functions/trimsuffix) removes a word from the end of a string.
* [`trimspace`](/language/functions/trimspace) removes all types of whitespace from
  both the start and the end of a string.