如何使用gnuplot的print语句写入stdout? [英] How to write to stdout with gnuplot's print statement?

问题描述

当我在脚本中使用以下命令时，gnuplot会将test打印到stderr:

When I use the following in my script, gnuplot will print test to stderr:

print "test"

但是，我只想将test写入stdout，因为只有错误应该写入stderr.

However, I want to write test to stdout as only errors should be written to stderr.

推荐答案

如gnuplot文档中所述(在交互式gnuplot控制台中键入help print):

As stated in the gnuplot docs (type help print in interactive gnuplot console):

可以通过设置打印来设置输出文件.

The output file can be set with set print.

所以，让我们看一下set print:

没有"<filename>"，输出文件将还原到<STDERR>.这 <filename> "-"表示<STDOUT>.

Without "<filename>", the output file is restored to <STDERR>. The <filename> "-" means <STDOUT>.

因此，只需在gnuplot脚本的顶部添加一个set print "-"，然后将print语句打印的所有内容写入stdout.

So simply add a set print "-" at the top of your gnuplot script and everything printed by the print-statement is written to stdout.

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