trim spaces or other unwanted text in R

[@logywonds6069]

thanks bro!!!!

[@sudiptomitra]

How to remove "$" & comma signs from the values in a variable of data frame by R ?

[@djangoworldwide7925]

I would guess using the gsub command
gsub("\\$+", " ", data) and same for "\\,+" " ", data

[@Michelle-mv1gg]

How do I remove unwanted numbers after the underscore?