KOI8RXTERM(1) X Window System KOI8RXTERM(1)

# [NAME](#NAME)

koi8rxterm - X terminal emulator for KOI8-R environments

# [SYNOPSIS](#SYNOPSIS)

**koi8rxterm** \[ *xterm-options* ]

# [DESCRIPTION](#DESCRIPTION)

**koi8rxterm** is a wrapper around the [**xterm(1)**](/man/os/xterm/xterm.1) program that invokes the latter program with the “KOI8RXTerm” X resource class set. All arguments to **koi8rxterm** are passed to **xterm** without processing; the **-class** and **-k8** options should not be specified because they are used by the wrapper. See the **xterm** manual page for more information on *xterm-options*.

The environment's locale settings (see “ENVIRONMENT” below) are used to discern the locale's character set. If no current locale can be determined, the locale “ru\_RU.KOI8-R” (the Russian language as used in the territory of Russia, with the KOI8-R character set) is assumed. The [**locale(1)**](/man/os/xterm/locale.1) utility is used to determine whether the system supports the selected locale. If it does not, **koi8rxterm** will exit with an error and report the output of **locale**.

**Note: koi8rxterm** may produce unexpected results if the current locale is set to one in which the KOI8-R character encoding is not supported, or if fonts using that encoding are not available. In the Debian system, the “xfonts-cyrillic” package provides the fonts that **koi8rxterm** uses by default. To change the fonts **koi8rxterm** uses, edit the */usr/lib/X11/app-defaults/KOI8RXTerm* file.

A similar wrapper, **[uxterm(1)](/man/os/xterm/uxterm.1),** is available for Unicode UTF-8 environments.

# [ENVIRONMENT](#ENVIRONMENT)

[**LC\_ALL, LC\_CTYPE, LANG**](#LC_ALL)

The values of these variables are checked, in order, to determine the character set used by the current locale.

# [AUTHORS](#AUTHORS)

**koi8rxterm** was written by Branden Robinson and is very heavily based on **uxterm**, by Thomas Dickey. The assistance of Jurij Smakov was invaluable in sanity-checking its operation.

# [SEE ALSO](#SEE_ALSO)

**[locale(1)](/man/os/xterm/locale.1),** **[locale(7)](/man/os/xterm/locale.7),** **[uxterm(1)](/man/os/xterm/uxterm.1),** [**xterm(1)**](/man/os/xterm/xterm.1)

2026-10-11 Patch #412

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Document: koi8rxterm(1) from xterm 412-r1 (Chainguard OS)
Source: https://github.com/ThomasDickey/xterm-snapshots