如何在GNUPLOT中绘制实时数据?数据来自一个不断记录新数据的文件

I would like to be able to plot data 'real-time' using gnuplot Specifically, for example, I have a file "foo.st" which is a data file, separated by columns. The data in "foo.st" is collected real-time from live variables I would like to have gnuplot open and plotting the data from "foo.st" as its continuously recording data. Ideally I want the plot to show a "1 second" plot, then refresh showing the next "1 second" of data, then refresh again showing the next "1 second" of data ... Right now, I have a gnuplot script "foo.p" which reads:I would like to be able to plot data 'real-time