[R] Why Rscript behaves strangely with file name starting with 'size'?

[thmsfuller066 at gmail.com]

Hello All,

It seems weird to me that Rscript does the following thing and enters
the R prompt mode. If I change the file name to something that doesn't
start with 'size', then Rscript runs normally. Does anybody know what
is going on?

$ Rscript size.R
WARNING: '--file=size.R' value is invalid: ignored

>


$ Rscript --version
R scripting front-end version 51072

-- 
Tom