---
name: "jfbterm"
section: "1"
platform: "linux"
package: "jfbterm"
version: "0.4.7-8"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/jfbterm"
---

# jfbterm(1)

program to print several character sets on framebuffer device.

## NAME

jfbterm - program to print several character sets on framebuffer device.

## SYNOPSIS

**jfbterm** \[*options*\]

## DESCRIPTION

This manual page documents briefly the **jfbterm** command.

**jfbterm** is a program that prints various encodings such as UTF-8, ISO-8859-\*, EUC-\*, and so on, on Linux framebuffer device, like KON that prints on VGA device.  It supports ISO-2022-compliant character sets, encodings which consist from such character sets, UTF-8, and encodings which [**iconv**(3)](/iconv/3.md) can convert from/to UTF-8. In GNU libc systems, all encodings which are available for [**iconv**(3)](/iconv/3.md) meet this condition and are available.

This supports fullwidth characters (which occupies two columns, like CJK Ideogram, Hiragana, Katakana, and Hangul).  However, this doesn't support combining characters nor BIDI.

## OPTIONS

This program follows the usual GNU command line syntax, with long options starting with two dashes (\`-'). A summary of options is included below.

- **-h, --help**

  Show summary of current configuration.

- **-e, --exec, --shell**

  Specify a program that run in jfbterm. Default is $SHELL (or /bin/sh).  Rest of arguments will be passed to the specified program.

- **-f, --config**

  Specify a pathname of the configuration file. Default is /etc/jfbterm.conf.

- **-c, --encoding, --charmap**

  Specify the encoding.  The format is same as **encoding** line of [**jfbterm.conf**(5)](/jfbterm.conf/5.md) file.

-

  When the given string is "locale" (the first format), the encoding specified by LC\_CTYPE locale is adopted.

-

  When the given string doesn't contain \`,' (the second format), the string is assumed as an encoding name.  A valid encoding name is either a name defined in encoding.*encodingName* line in [**jfbterm.conf**(5)](/jfbterm.conf/5.md) or a name which is valid for [**iconv**(1)](/iconv/1.md) or [**iconv\_open**(3)](/iconv_open/3.md).

-

  When the given string contains a \`,' (the third format), the string is assumed to have *GL*,*GR*,*G0*,*G1*,*G2*,*G3* format. See [**jfbterm.conf**(5)](/jfbterm.conf/5.md) for detail.

- **-r, --reset**

  Output ISO-2022 initialize sequence to tty. You can specify codeset name as optional argument like: **--reset=***encodingName*. Default is locale's codeset.

- **-q, --quiet**

  Don't print out messages.

## NOTES

Since version 0.3.14, default encoding has been changed from EUC-JP to encoding for locale.  To make it enable to display EUC-JP, run

```
	$ jfbterm --reset=EUC-JP
or
	$ export LANG=ja_JP.eucJP
	$ jfbterm -r
```

if you have already invoked jfbterm and are on it.  If you have not invoked jfbterm and want to invoke it now, set LANG variable before invoking jfbterm.

## SEE ALSO

[**jfbterm.conf**(5)](/jfbterm.conf/5.md).

## AUTHOR

This manual page was written by Fumitoshi UKAI \<ukai@debian.or.jp\>.