Write.table query

Hello,

I have the following 'write.table' statement which works fine

write.table(DataOutput,"c:/Prices.csv",append = TRUE,col.names = NA,sep
= "," )

My query is, how could I modify this so I can include a variable name as
a prefix before the 'Prices.CSV' filename.

For example:

prefixname = "DevX"

write.table(DataOutput,"c:/" &prefixname& "Prices.csv",append =
TRUE,col.names = NA,sep = "," )

With the resultant CSV output to be named "DevXPrices.csv".

prefixname <- "DevX"
paste("c:/", prefixname, "Prices.csv", sep = "")