Nothing
#!/usr/bin/env Rscript
args = commandArgs(trailingOnly=TRUE)
load(args[1])
write.table(introns, file=args[2], quote=FALSE, row.names=FALSE, sep="\t")
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.