# Problem in Acessing files from sandbox

**URL:** <https://forum.legato.io/t/problem-in-acessing-files-from-sandbox/6991>\
**Category:** Uncategorized\
**Created:** [January 26, 2026, 9:08am UTC](https://forum.legato.io/t/problem-in-acessing-files-from-sandbox/6991 "2026-01-26T09:08:36Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\
**Post date:** [January 26, 2026, 10:31am UTC](https://forum.legato.io/t/problem-in-acessing-files-from-sandbox/6991/2 "2026-01-26T10:31:19Z")

</div>

you can see this application on how to read/write file inside sandbox application:

> **[legato-af/apps/test/audio/audioPlaybackRec at master · legatoproject/legato-af](https://github.com/legatoproject/legato-af/tree/master/apps/test/audio/audioPlaybackRec)**
>
> Legato Application Framework. Contribute to legatoproject/legato-af development by creating an account on GitHub.

//audio playback:

`app runProc audioPlaybackRec audioPlaybackRecTest --exe=audioPlaybackRecTest – PB_SAMPLES MIC /usr/share/sounds/0-to-9.wav 1 8000 16`

//audio recording

`app runProc audioPlaybackRec audioPlaybackRecTest --exe=audioPlaybackRecTest – REC MIC /record/remote.wav WAV`

you can also see this:

> [@File read and Write in Legato 18.09.0](https://forum.legato.io/t/file-read-and-write-in-legato-18-09-0/3824/2):
>
> Hi @asifarshad, Yes, We are able to do write and read operations in a single App using legato-18.9.0. See that i have attached sample application[sampleApp.zip](https://forum.legato.io/uploads/short-url/3hJzDkRv6zZsmuBphpXGfGJxcDe.zip) (1.6 KB) where we are writing and reading from a text file. Is this is what you expected? If not, Please specify your requirements. Note: We used WP85’s Release 16 and legato-18.09.0 on top of WP85’s Release. Regards, Muralidhara N.

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