How to suppress output

I would like to suppress output in R when I run my R script from the command prompt.

I tried numerous options incl开发者_Python百科uding --slave and --vanilla. Those options lessens the amount of text outputted.

I also tried to pipe the output to NUL but that didn't help.

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Look at help(sink) to do that. On Unix I'd do

sink("/dev/null")    # now suppresses
....                 # do stuff
sink()               # to undo prior suppression, back to normal now

and the Windows equivalent (with a tip-of-the-hat to Johannes) is

sink("NUL")
....
sink()

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Since R (>= 3.6.0), there exists a platform-independent alternative to Dirk Eddelbuettel's answer. Simply type

sink(nullfile())    # suppress output
....                # your code
sink()              # end suppressing output

to suppress output on both Linux and Windows.