$ is not used specially and should therefore be escaped DOK-SC1000

$ is special in double quotes, but there are some cases where it's interpreted literally: - Following a backslash: echo "\$" - In a context where the shell can't make sense of it, such as at the end of the string, ("foo$") or before some constructs ("$'foo'").

To avoid relying on strange and shell-specific behavior, any $ intended to be literal should be escaped with a backslash.