[android-components](../../index.md) / [mozilla.components.support.ktx.kotlin](../index.md) / [kotlin.String](index.md) / [sanitizeFileName](./sanitize-file-name.md)

# sanitizeFileName

`fun `[`String`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)`.sanitizeFileName(): `[`String`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/support/ktx/src/main/java/mozilla/components/support/ktx/kotlin/String.kt#L145)

Remove any unwanted character from string containing file name.
For example for an input of "/../../../../../../directory/file.txt" you will get "file.txt"

