---
name: "projid"
section: "5"
platform: "linux"
package: "xfsprogs"
version: "7.2.1-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/projid"
---

# projid(5)

the project name mapping file

## NAME

projid - the project name mapping file

## DESCRIPTION

The */etc/projid* file provides a mapping between numeric project identifiers and a simple human readable name (similar relationship to the one that exists between usernames and uids). Its format is simply:

```

# comments are hash-prefixed
# ...
cage:10
logfiles:42
```

This file is optional, if a project identifier cannot be mapped to a name, it will be parsed and displayed as a numeric value.

## SEE ALSO

[**xfs\_quota**(8)](/xfs_quota/8.md), [**xfsctl**(3)](/xfsctl/3.md), [**projects**(5)](/projects/5.md).