Somehow my home directory on my mac machine has been changed and I'm not sure how to go about changing it back, I'm more of a linux guy and mac has some other mechanism for storing that information.

Basically when I log into the machine normally than start a terminal window. I start in the /Users/erik_miller directory, which is my home directory, but when I run some this like

cd ~

The machine tries to change to

/Users/erik_miller.

Yes, the same path with a period on the end. I can change my $HOME environment variable for the session, but the next time I start the machine it reverts. So, I think if I can find where that information is stored I can just change it there and hopefully all will be well.