---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# ac

> Print statistics on how long users have been connected.
> More information: <https://man.openbsd.org/ac>.

- Print how long the current user has been connected in hours:

`ac`

- Print how long users have been connected in hours:

`ac -p`

- Print how long a particular user has been connected in hours:

`ac -p {{username}}`

- Print how long a particular user has been connected in hours per [d]ay (with total):

`ac -dp {{username}}`
