text <- "3, 2, 1, go!"
text <- gsub("1", "one", text, fixed = TRUE)
text <- gsub("2", "two", text, fixed = TRUE)
text <- gsub("3", "three", text, fixed = TRUE)
# text = three, two, one, go!
# gsub() replaces all occurrences
ones <- "1 1 1"
all_replaced <- gsub("1", "one", ones,
fixed = TRUE)
# all_replaced = one one one
# sub() replaces the first one only
first_only <- sub("1", "one", ones, fixed = TRUE)
# first_only = one 1 1
cat("text =", text, "\n")
cat("all_replaced =", all_replaced, "\n")
cat("first_only =", first_only, "\n")