---
name: "rwall"
section: "1"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["linux", "freebsd", "openbsd"]
url: "https://new.carta.tech/rwall"
---

# rwall(1)

send a message to users logged on a host

## NAME

**rwall** – send a message to users logged on a host

## SYNOPSIS

**rwall** *host* \[*file*\]

## DESCRIPTION

The **rwall** command sends a message to the users logged into the specified host. The message to be sent can be typed in and terminated with EOF or it can be in a *file*.

## DIAGNOSTICS

- rwall: RPC: Program not registered

  The [rpc.rwalld(8)](/rpc.rwalld/8.md) daemon has not been started on the remote host.

- rwall: RPC: Timed out

  A communication error occurred. Either the network is excessively congested, or the [rpc.rwalld(8)](/rpc.rwalld/8.md) daemon has terminated on the remote host.

- rwall: RPC: Port mapper failure - RPC: Timed out

  The remote host is not running the portmapper (see [portmap(8)](/portmap/8.md)), and cannot accommodate any RPC-based services. The host may be down.

## SEE ALSO

[wall(1)](/wall/1.md), [portmap(8)](/portmap/8.md), [rpc.rwalld(8)](/rpc.rwalld/8.md)

## HISTORY

The **rwall** command appeared in SunOS.