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Editorial Team
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Asked: 2026-06-05T04:40:07+00:00

I open a Windows command prompt. I run R R . When I press

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I open a Windows command prompt. I run R R. When I press Control-C in the R terminal, something weird happens. It appears to exit R and take me back to the command prompt, BUT now when I type commands they are fought over by the command prompt and a R terminal hiding in the background . What’s going on?

C:\Users\hickfordm>R

R version 2.15.0 (2012-03-30)

> ^C
c:\users\hickfordm>dir
'ir' is not recognized as an internal or external command, operable program or batch file.

c:\users\hickfordm>
Error: object 'd' not found

Edit: This happens to me only if I run R. If I run Rterm, control-C does nothing, which is reasonable.

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  1. Editorial Team

    My friend was able to reproduce this on Windows with R, but not Rterm. Doesn’t happen on Linux. This must be a bug in R. I’ll endeavour to report it https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=14948

    Fixed upstream, expect fix to make R 2.16

    Meanwhile, fixed in R patched 2.15.1 http://cran.r-project.org/bin/windows/base/rpatched.html (not vanilla 2.15.1)

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