When I use cent os or ubuntu, I just type 'gp' to run gnuplot.
Of course, typing 'gnuplot' also works.
But it doesn't work in osx terminal.
How to make 'gp' possible?
Type this line at your terminal and you should be able to call gnuplot by executing gp
If you want to make it permanent, add this line to the startup script of your shell. It's
~/.bashrc if you use bash, or
~/.zshrc if you use zsh.