The load command executes each line of the specified input file as
if it had been typed in interactively. Files created by the save
command can later be loaded. Any text file containing valid
commands can be created and then executed by the load command.
Files being loaded may themselves contain load commands. See
comment for information about comments in commands.
The load command must be the last command on the line.
Syntax:
load "<input-file>"
The name of the input file must be enclosed in quotes.
Examples:
load 'work.gnu'
load "func.dat"
The load command is performed implicitly on any file names given as
arguments to GNUPLOT. These are loaded in the order specified, and
then GNUPLOT exits.