Change User Permissions

I migrated and later I created a new profile. I then erased the original profile. I had some how in the past changed my short name to a word with a capital and i wasn't very comfortable with that .

so now my profile wasn't the original on this machine, and it has all lower case.

But I've been having that whole ACL thing with my repair permissions that take about an hour or so.

I tried to update my appliations but somehow my admin user doesn't have those permissions.

I did a repair that told me that I am no longer the 501 user.

how do i change that?

I don't seem to have Net Info or whatever utility that is, can i do this in terminal?