---
name: "rcs2log"
section: "1"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["linux", "openbsd"]
url: "https://new.carta.tech/rcs2log"
---

# rcs2log(1)

RCS to ChangeLog generator

## NAME

**rcs2log** – RCS to ChangeLog generator

## SYNOPSIS

**rcs2log** \[**-c** *changelog*\] \[**-h** *hostname*\] \[**-i** *indent*\] \[**-l** *length*\] \[**-R**\] \[**-r** *option*\] \[**-t** *tabwidth*\] \[**-u** *login\<TAB\>fullname\<TAB\>mailaddr*\] \[**-v**\] \[**--help**\] \[**--version**\] \[*file* *...*\]

## DESCRIPTION

The **rcs2log** utility generates a change log prefix from RCS files (perhaps in the CVS repository) and the ChangeLog (if any).

The options are as follows:

- **-c** *changelog*

  Output a change log prefix to *changelog* (default ChangeLog).

- **-h** *hostname*

  Use *hostname* in change log entries (default current host).

- **-i** *indent*

  Indent change log lines by *indent* spaces (default 8).

- **-l** *length*

  Try to limit log lines to *length* characters (default 79).

- **-R**

  If no *file*(s) are given and RCS is used, recurse through working directory.

- **-r** *option*

  Pass *option* to subsidiary log command.

- **-t** *tabwidth*

  Tab stops are every *tabwidth* characters (default 8).

- **-u** *login\<TAB\>fullname\<TAB\>mailaddr*

  Assume *login* has *fullname* and *mailaddr*.

- **-v**

  Append RCS revision to file names in log lines.

- **--help**

  Output help.

- **--version**

  Output version number.

## SEE ALSO

[rcs(1)](/rcs/1.md), [rcsintro(1)](/rcsintro/1.md), [rlog(1)](/rlog/1.md), [rcsfile(5)](/rcsfile/5.md)

## AUTHORS

Paul Eggert ⟨*eggert@twinsun.com*⟩