On 25/03/2009, at 6:29 AM, Gregoire Pau wrote:
Hello,
How can I test in R whether a file is a symbolic link or not ? I
haven't
found anything relevant in R-help but I may be wrong.
Thanks !
Since symbolic links are a Unix thing, I assume you are working on a
system
that is sufficiently Unix-like for the following roll-your-own to work:
cfsl <- function(file) {
# cfsl <--> "check for symbolic link"
xxx <- system(paste("ls -l",file),intern=TRUE)
if(substr(xxx,1,1)=="l") TRUE else FALSE
}
HTH
cheers,
Rolf Turner
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