# Duplication of standard libraries

**URL:** <https://discourse.julialang.org/t/duplication-of-standard-libraries/87034>\
**Category:** Internals & Design\
**Created:** [September 10, 2022, 8:13am UTC](https://discourse.julialang.org/t/duplication-of-standard-libraries/87034 "2022-09-10T08:13:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Lilith](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/lilith/32/27492_2.png) [@Lilith](https://discourse.julialang.org/u/Lilith)\
**Post date:** [September 10, 2022, 8:13am UTC](https://discourse.julialang.org/t/duplication-of-standard-libraries/87034/1 "2022-09-10T08:13:33Z")

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It looks like there is a lot of duplication between `julia/stdlib` and `julia/usr/share/julia/stdlib/v1.9`. What is the deal with that?

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**Author:** ![Sukera](https://avatars.discourse-cdn.com/v4/letter/s/ce7236/32.png) [@Sukera](https://discourse.julialang.org/u/Sukera)\
**Post date:** [September 10, 2022, 8:44am UTC](https://discourse.julialang.org/t/duplication-of-standard-libraries/87034/2 "2022-09-10T08:44:58Z")

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The stdlibs in there are all symlinks:

```julia
[sukera@tempman v1.9]$ pwd
/home/sukera/julia/usr/share/julia/stdlib/v1.9
[sukera@tempman v1.9]$ ls -l
total 44
lrwxrwxrwx 1 sukera sukera 75 Sep 6 14:00 ArgTools -> /home/sukera/julia/stdlib/ArgTools-08b11b2707593d4d7f92e5f1b9dba7668285ff82
lrwxrwxrwx 1 sukera sukera 35 Sep 6 14:00 Artifacts -> /home/sukera/julia/stdlib/Artifacts
lrwxrwxrwx 1 sukera sukera 32 Sep 6 14:00 Base64 -> /home/sukera/julia/stdlib/Base64
...

```

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<div class="post-metadata">

**Author:** ![Lilith](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/lilith/32/27492_2.png) [@Lilith](https://discourse.julialang.org/u/Lilith)\
**Post date:** [September 10, 2022, 10:11am UTC](https://discourse.julialang.org/t/duplication-of-standard-libraries/87034/3 "2022-09-10T10:11:08Z")

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Thanks!