fcitx

fcitx [options]

--version
    Displays the version number of Fcitx.

--help
    Displays help information about Fcitx.

-d, --daemon
    Starts Fcitx as a daemon process in the background.

-r, --replace
    Replaces the existing Fcitx instance with a new one.

-c, --config
    Specifies a custom configuration file to use.

--enable
    Enables the specific input method engine.

--disable
    Disables the specific input method engine.

Fcitx (Flexible Input Method Framework) is an input method framework that aims to provide a platform for input methods across various languages and scripts on Linux and Unix-like operating systems.

It allows users to input characters not directly available on their keyboard, such as Chinese, Japanese, Korean, or other specialized symbols and glyphs. Fcitx is highly customizable and supports a wide range of input method engines, allowing users to choose the engine that best suits their needs and preferences. It integrates with various desktop environments like GNOME, KDE, and Xfce, providing a seamless user experience. Fcitx is known for its flexibility, modularity, and extensive configuration options, making it a popular choice for multilingual users. Fcitx uses plugins or 'engines' for specific languages or input methods. Configuration is typically done graphically or by editing configuration files.
Fcitx has broad community support that provides a wide array of language packs.

Fcitx requires proper configuration and may need specific environment variables to be set for optimal integration with certain applications and desktop environments. Conflicts can occur if multiple input method frameworks are installed.

Fcitx uses configuration files, usually located in ~/.config/fcitx/, to store settings and preferences. These files can be edited to customize the behavior of Fcitx and its input method engines. The specific format and options available may vary depending on the engine being used.

If Fcitx is not working correctly, ensure it is properly started and configured, and that the necessary environment variables are set. Check the Fcitx logs for any error messages. Also check for compatibility issues with specific applications or desktop environments.
Common problems are missing locales, incorrect configuration files or running more than one input method.

Fcitx was initially developed to address the limitations of existing input method frameworks. It gained popularity due to its modular design, extensive customization options, and support for a wide variety of languages and input methods. It has been actively developed and maintained with frequent updates and improvements over time.

ibus(1), im-config(1)