fslsfonts

fslsfonts [-options] pattern

-display host:display.screen
    Specifies the X server to connect to.

-l
    Lists long format; gives more font properties.

-v
    Lists verbose information about each font.

-server hostname:portnumber
    Specifies the font server to connect to. Overrides the -display option for font listing.

-fn pattern
    Specifies a font name pattern.

-fp
    List font path.

-u
    Lists unsorted font names.

pattern
    An optional pattern that limits the fonts that are listed. Uses wildcards.

The fslsfonts command lists the fonts served by an X server. It connects to the specified X server (or the default one if none is given) and retrieves a list of fonts that match the optional pattern.

The output is a simple list of font names, one per line. This command is useful for identifying available fonts on a particular server and using them in X applications. It is part of the x11-utils package on many Linux distributions. The command uses the Font Service Protocol (FSP) to query the X server. If no pattern is specified, all fonts are listed, which can be a very long list. Consider filtering by wildcards. For example, fslsfonts -fn '*helvetica*'

Listing all fonts can take a long time, especially on servers with many fonts. Using a specific pattern is highly recommended. Font servers may not be enabled or properly configured by default.

fslsfonts '*courier*': Lists all fonts with 'courier' in their name.
fslsfonts -server hostname:portnumber: Lists fonts from the specified font server.

xlsfonts(1), xfontsel(1)