FUNCTION::NS\_UID(3stap) Context Functions FUNCTION::NS\_UID(3stap)

# [NAME](#NAME)

function::ns\_uid - Returns the user ID of a target process as seen in a user namespace

# [SYNOPSIS](#SYNOPSIS)

```


    ns_uid:long()
```

# [ARGUMENTS](#ARGUMENTS)

None

# [DESCRIPTION](#DESCRIPTION)

This function returns the user ID of the target process as seen in the target user namespace if provided, or the stap process namespace.

# [SEE ALSO0](#SEE_ALSO0)

[*tapset::context*(3stap)](/man/enterprise-packages/systemtap/tapset::context.3stap)

September 2026 SystemTap Tapset Reference Ver

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Document: function::ns_uid(3stap) from systemtap 5.6-r0 (Chainguard OS)
Source: https://sourceware.org/git/systemtap.git