Syntax:
set loadpath {"pathlist1" {"pathlist2"...}} show loadpath
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 platforms. The show loadpath, save and save set commands replace the platform-specific separator with a space character (' ').
If the environment variable GNUPLOT_LIB is set, its contents are appended to
loadpath. However, show loadpath prints the contents of set loadpath
and GNUPLOT_LIB separately. Also, the save and save set commands ignore
the contents of GNUPLOT_LIB.