R 抑制系统或 shell 命令的控制台输出

问题描述

我有这个 windows-batchfile，我使用 shell() 命令从 R 调用它.该批处理文件进行一些计算并将它们写入磁盘和屏幕.我只对磁盘输出感兴趣.我无法更改批处理文件.

批处理文件可能有点像:

@echo off回声 1 + 2@echo 1 + 2 >C:\TEMP\batchoutput.txt出口

我试过了

shell("batchfile.bat", invisible = TRUE)

1 + 2

shell("batchfile.bat", show.output.on.console = FALSE)

系统错误(cmd, intern = intern, wait = wait | intern, show.output.on.console = wait, :形参 "show.output.on.console" 匹配多个实参

system("batchfile.bat", invisible = T)

1 + 2

system("batchfile.bat", show.output.on.console = F)

警告信息:运行命令 'C:\TEMP\batchfile.bat' 的状态为 1

有没有办法抑制 R 上的控制台输出?

解决方案

options(warn = -1)shell("你命令")选项(警告 = 0)

I have this windows-batchfile which I'm calling from R using the shell() command. This batchfile does some calculations and writes them on the disk but also on the screen. I'm interested in the disk-output, only. I cannot change the batchfile.

The batchfile might be something silly like:

@echo off
echo 1 + 2
@echo 1 + 2 > C:\TEMP\batchoutput.txt
exit

I tried

shell("batchfile.bat", invisible = TRUE)

shell("batchfile.bat", show.output.on.console = FALSE)

system("batchfile.bat", invisible = T)

system("batchfile.bat", show.output.on.console = F)

Is there a way of supressing the console-output on R?

解决方案

options(warn = -1)
shell("You command")
options(warn = 0)

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