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rxvt is a terminal emulator
Terminal emulator

A terminal emulator, terminal application, term, or tty for short, is a program that emulates a "dumb" video Computer terminal within some other display architecture....
 for the X Window System
X Window System

The X Window System is a computing software system and network protocol that provides a graphical user interface for networked computers. It implements the X Window System protocols and architecture and provides windowing system on raster graphics Visual display units and manages Keyboard and pointing device control functions....
, originally written by Rob Nation and later extensively modified by Mark Olesen, who took over maintenance for several years. It is intended to be a slimmed-down replacement for xterm
Xterm

In computing, xterm is the standard terminal emulator for the X Window System. A user can have many different invocations of xterm running at once on the same display device, each of which provides independent input/output for the Process running in it ....
, omitting some of its little-used features, like Tektronix 4014
Tektronix 4014

Tektronix' 4000 series was a family of text and graphics computer terminals based on the company's storage tube technology. No additional electronics were needed to maintain the display, so the 4000 series were less expensive than earlier graphics terminals and became widely used in the computer aided design market in the 1970s and 80s....
 emulation and toolkit-style configurability. The latter refers to the Xt resource mechanism, e.g., for binding keys. rxvt is an extended version of the older xvt terminal emulator by John Bovey of the University of Kent
University of Kent

The University of Kent is a plate glass university Campus university university in Kent, England....
.






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rxvt is a terminal emulator
Terminal emulator

A terminal emulator, terminal application, term, or tty for short, is a program that emulates a "dumb" video Computer terminal within some other display architecture....
 for the X Window System
X Window System

The X Window System is a computing software system and network protocol that provides a graphical user interface for networked computers. It implements the X Window System protocols and architecture and provides windowing system on raster graphics Visual display units and manages Keyboard and pointing device control functions....
, originally written by Rob Nation and later extensively modified by Mark Olesen, who took over maintenance for several years. It is intended to be a slimmed-down replacement for xterm
Xterm

In computing, xterm is the standard terminal emulator for the X Window System. A user can have many different invocations of xterm running at once on the same display device, each of which provides independent input/output for the Process running in it ....
, omitting some of its little-used features, like Tektronix 4014
Tektronix 4014

Tektronix' 4000 series was a family of text and graphics computer terminals based on the company's storage tube technology. No additional electronics were needed to maintain the display, so the 4000 series were less expensive than earlier graphics terminals and became widely used in the computer aided design market in the 1970s and 80s....
 emulation and toolkit-style configurability. The latter refers to the Xt resource mechanism, e.g., for binding keys. rxvt is an extended version of the older xvt terminal emulator by John Bovey of the University of Kent
University of Kent

The University of Kent is a plate glass university Campus university university in Kent, England....
. The name originally stood for "Robert's xvt", but was later re-dubbed "our xvt" (pronounced like the letters r-x-v-t).

Aside from features such as those controlled by resource files, rxvt's terminal emulation differs from xterm
Xterm

In computing, xterm is the standard terminal emulator for the X Window System. A user can have many different invocations of xterm running at once on the same display device, each of which provides independent input/output for the Process running in it ....
 in two important ways:
  • it emulates a VT102
    VT100

    VT100 is a video computer terminal which was made by Digital Equipment Corporation . It became the de facto standard used by terminal emulators....
    , rather than a VT220
    VT220

    The VT220 was a computer terminal produced by Digital Equipment Corporation from 1983 to 1987....
    . That means that it handles 8-bit data differently, does not implement the C1
    C0 and C1 control codes

    The C0 and C1 control code sets define control codes for use in text by computer systems that use the ISO/IEC 2022 system of specifying control and graphic characters....
     controls that xterm does. xterm does implement a switch "-k8" to suppress that functionality; rxvt does not provide an option to emulate a VT220.
  • the strings sent for function keys are different. xterm sends strings that are encoded using the same rules as the ANSI/ISO
    ANSI escape code

    ANSI escape sequences are used to control text formatting and other output options on text terminals. In this context, American National Standards Institute refers to the ANSI X3.64 standard ....
     escape sequences. Rxvt's do not, though they provide comparable flexibility in this area.


Newer versions of rxvt have primitive support for pseudo-transparency.

The rxvt distribution also includes an analog clock program called rclock. Very old distributions included a copy of vttest
Vttest

Vttest is an application which is used to demonstrate features of VT100 and related terminals, or emulations thereof, such as xterm. The program was originally written in 1986 by Per Lindberg....
, but dropped that in 1996 with version 2.18.

Derived programs


  • aterm
    Aterm

    aterm is the AfterStep terminal emulator for the X Window System. Based on rxvt 2.4.8 , aterm is a color VT100 terminal emulator that supports basic pseudo-transparency....
     (from rxvt 2.4.8)
  • Eterm
    Eterm

    Eterm is a color VT100 terminal emulator for the X Window System, programmed principally by Michael Jennings. It is designed chiefly with the Enlightenment window manager in mind....
     (from rxvt 2.21)
  • mrxvt
    Mrxvt

    The mrxvt program is a terminal emulator for X Window System. It provides VT100 compatible terminals.mrxvt is based on rxvt version 2.7.11 CVS , and features most of functionality of rxvt, with a few major enhancements ....
     (from rxvt 2.7.11)
  • rxvt-unicode
    Rxvt-unicode

    Rxvt-unicode, commonly known as urxvt, is a color VT102 terminal emulator for the X Window System. It was written by Marc Lehmann, who Fork it from rxvt in November 2003....
     (from rxvt 2.7.11)


External links