Rewrite Results -> Output as Link: How do I get this to work?
Don't the instructions for the link field tell you that you can use tokens in the URL?  I do not have a view with a text field handy, but here is a screenshot from a view where I make a custom link for the title field:



Scroll down to the Replacement Tokens and expand that field.  One of the options should be something like [field_fileSymLink].  Then you should be able to use something like http://apollo.tbc.iit.edu/~spaceweather/[field_fileSymLink] or maybe just /[field_fileSymLink].