Syntax:
set fontpath {"pathlist1" {"pathlist2"...}} show fontpath
Path names may be entered as single directory names, or as a list of path names separated by a platform-specific path separator, eg. colon (':') on Unix, semicolon (';') on DOS/Windows/OS/2/Amiga platforms. The show fontpath, save and save set commands replace the platform-specific separator with a space character (' ') for maximum portability. If a directory name ends with an exclamation mark ('!') also the subdirectories of this directory are searched for font files.
If the environmental variable GNUPLOT_FONTPATH is set, its contents are appended to fontpath. If it is not set, a system dependent default value is used. It is set by testing several directories for existence when using the fontpath the first time. Thus, the first call of set fontpath, show fontpath, save fontpath, plot, or splot with embedded font files takes a little more time. If you want to save this time you may set the environmental variable GNUPLOT_FONTPATH since probing is switched off, then. You can find out which is the default fontpath by using show fontpath.
However, show fontpath prints the contents of user defined fontpath and system fontpath separately. Also, the save and save set commands save only the user specified parts of fontpath, for portability reasons.
Many other terminal drivers access TrueType fonts via the gd library. For these drivers the font search path is controlled by the environmental variable GDFONTPATH.