# Temporary files - possible?

**URL:** <https://discourse.appimage.org/t/temporary-files-possible/139>\
**Category:** Creating AppImages\
**Created:** [January 31, 2017, 4:34pm UTC](https://discourse.appimage.org/t/temporary-files-possible/139 "2017-01-31T16:34:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dummy](https://avatars.discourse-cdn.com/v4/letter/d/7c8e57/32.png) [@dummy](https://discourse.appimage.org/u/dummy)\
**Post date:** [January 31, 2017, 4:34pm UTC](https://discourse.appimage.org/t/temporary-files-possible/139/1 "2017-01-31T16:34:53Z")

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I have an application that modifies permanent files that it relies on and also creates and reads from temporary files while it runs. When I package and run it, I immediately get the read-only file system error. Is this a consequence of using AppImage or is there some way to handle these types of files? Examples: 1) Internal log/data files and 2) Calling other binaries and parsing their output files.

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**Author:** ![probono](https://yyz1.discourse-cdn.com/flex027/user_avatar/discourse.appimage.org/probono/32/81_2.png) [@probono](https://discourse.appimage.org/u/probono)\
**Post date:** [February 4, 2017, 7:32am UTC](https://discourse.appimage.org/t/temporary-files-possible/139/2 "2017-02-04T07:32:27Z")

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AppImages are read-only. Please make sure that your application only writes within `$HOME`.