How do I get only values ending with, say $, from a search

[vhuphilo]

I would like to search for values that end with or begin with specific characters

[lukejadamec]

You need to specify both the beginning and ending characters if you're going to extract the values from _raw.
If you are looking at a specific field like 'AccountName' and you only want account names that end with $, then you can use wildcards in your search, like:

YourSearch  AccountName=*$