# Modify FASTQ file description with a new string using FASTX

**URL:** <https://discourse.julialang.org/t/modify-fastq-file-description-with-a-new-string-using-fastx/46672>\
**Category:** Biology, Health, and Medicine\
**Tags:** question\
**Created:** [September 15, 2020, 11:20pm UTC](https://discourse.julialang.org/t/modify-fastq-file-description-with-a-new-string-using-fastx/46672 "2020-09-15T23:20:30Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![kevbonham](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kevbonham/32/216165_2.png) [@kevbonham](https://discourse.julialang.org/u/kevbonham)\
**Post date:** [September 16, 2020, 12:35am UTC](https://discourse.julialang.org/t/modify-fastq-file-description-with-a-new-string-using-fastx/46672/2 "2020-09-16T00:35:39Z")

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Welcome! This should be pretty straightforward, and may be faster than with python, especially if you don’t actually have to store/process the sequences themselves. Can you share what you’ve tried and what issues you’re running into?

It may also be helpful to take a look a look at [this post](https://discourse.julialang.org/t/psa-make-it-easier-to-help-you/14757) which has some tips on how to format stuff if you’re including code.

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