Maybe it's a Linux problem:

> cat("abc\b")
ab> cat("abc\b\n")
abc
> sessionInfo()
R version 3.0.2 (2013-09-25)
Platform: x86_64-pc-linux-gnu (64-bit)

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
 [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
 [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
 [7] LC_PAPER=en_US.UTF-8       LC_NAME=C
 [9] LC_ADDRESS=C               LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base
>
> Sys.info()
                                     sysname
                                     "Linux"
                                     release
                         "3.11.0-12-generic"
                                     version
"#19-Ubuntu SMP Wed Oct 9 16:20:46 UTC 2013"
                                    nodename
                                     "XXXXX"
                                     machine
                                    "x86_64"
                                       login
                                    "XXXXX"
                                        user
                                    "XXXXX"
                              effective_user
                                    "XXXXX"
>




On 1 November 2013 19:54, Dennis Murphy <djmuser@gmail.com> wrote:

> I can't reproduce the error, either:
>
> > cat("abc\b")
> ab> cat("abc\b\n")
> ab
> >
> > sessionInfo()
> R version 3.0.2 (2013-09-25)
> Platform: x86_64-w64-mingw32/x64 (64-bit)
>
> locale:
> [1] LC_COLLATE=English_United States.1252
> [2] LC_CTYPE=English_United States.1252
> [3] LC_MONETARY=English_United States.1252
> [4] LC_NUMERIC=C
> [5] LC_TIME=English_United States.1252
>
> <package info snipped for brevity>
>
> Dennis
>

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