backup
A Linux system account: what it is, and which numbers it holds.
What this account is
Intended purpose not confirmed. Debian's account documentation offers delegation of backup and restore duties without full root privileges as a likely explanation, and marks it as unverified.
Source: base-passwd, doc/users-and-groups.sgml, edition 0.2
Sources
| Distribution | Source package | Package version | Commit | Read from source |
|---|---|---|---|---|
| Debian | base-passwd | 3.6.8 | a080557e1d59 | 2026-08-07 |
| Alpine Linux | alpine-baselayout | 3.7.2 | a9c597c5cee0 | 2026-08-07 |