[R] passing a file name to a script

[Steve Sherman]

All,

I have a script in which I am connecting to an MS Access data table. The 
script concludes with the output of a text file that I use in another 
program. My questions are these:

1) Is there a method by which I can interactively enter the MS Access 
table name at the time I run the script—can I pass the script a file 
name and/or path and file name (so that it doesn’t always have to be the 
same name)?

2) Is there a way form me to interactively enter an output table name at 
the time I run the script?

Below are the means by which I am connecting and outputting data:

con <- odbcConnectAccess([path to MS Access data table])

write.table([output table file name], file = "adjustedout.csv", append = 
FALSE, sep = ",", col.names = NA, qmethod = "double")

I am not a programmer so “talk” slowly. Answers to either, or both, 
questions would be greatly appreciated. If it matters I am using the 
Window binary version of R.

Thanks in advance for any assistance.

Steve