# Is there a command to tell me if I am the default sysimage or a custom one?

**URL:** https://discourse.julialang.org/t/is-there-a-command-to-tell-me-if-i-am-the-default-sysimage-or-a-custom-one/63673
**Category:** New to Julia
**Tags:** vscode, sysimage
**Created:** [June 28, 2021, 5:02am UTC](https://discourse.julialang.org/t/is-there-a-command-to-tell-me-if-i-am-the-default-sysimage-or-a-custom-one/63673 "2021-06-28T05:02:32Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![xiaodai](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/xiaodai/32/15937_2.png) [@xiaodai](https://discourse.julialang.org/u/xiaodai)
#### Post date: [June 28, 2021, 5:02am UTC](https://discourse.julialang.org/t/is-there-a-command-to-tell-me-if-i-am-the-default-sysimage-or-a-custom-one/63673/1 "2021-06-28T05:02:32Z")

</div>

I am using VSCode, I turn on the feature about using a custom sysimage. But often, I am not sure if I am using the default sysimage or a custom one. How can I tell?

Is there a command I can type? E.g. one that shows me all compiled packages?

I found this: [https://www.reddit.com/r/Julia/comments/5xy8s1/list\_all\_julia\_precompiled\_packages/](https://www.reddit.com/r/Julia/comments/5xy8s1/list_all_julia_precompiled_packages/)