i can't figure it out.
:s/./* looks like sed syntax, should work
it replaced the first character
wait how do i undo stuff on vim?
:u
oh it worked
:%s/./*/g should replace all "." for "*", right?
do i have to specify a range?
:1-4%s/./*/g doesn't seem to be it
:1,4%s/./*/g doesn't seem to be either
maybe the * is treated like a wildcard, lemme escape it
:%s/./\*/g
not that either
okay after a google search turns out the "." is the wildcard, not the "*"
so escaping it like this
:%s/\./*/g
actually works