R: How to replace dots by dot in names?

Here I have column of names where First and Last names are deliminated by space, so how can I convert it to dot deliminated? Like: Wayne.Ribbon, Rio.Mansey…

df <- data.frame (name  = c("Wayne Ribbon", "Rio Mansey", "Alexandre Trakovski"),
                  age = c(38,54,29))

>Solution :

Replace the whitespace by a period using sub(if you always have one first name and one family name; if there are more than two parts, use gsub):

df %>%
  mutate(name = sub(" ", ".", name))
                 name age
1        Wayne.Ribbon  38
2          Rio.Mansey  54
3 Alexandre.Trakovski  29