[U-Boot-Users] Simple newbie fs question

I apologize for this beforehand, but maybe there's a simple answer. I'm very new to uboot.

I've gotten myself into a tough spot. There's a application on my computer preventing my boot from completing, since it freezes. I can fix it if I can just remove/corrupt the guilty file on my file system. So I stop the boot and enter into the uboot command line. I can see the file I want to remove, but I am not skilled enough to know if/how I can alter it or remove it from the uboot command line. I'm using version 1.1.3.

If such a thing is possible I would appreciate instructions.

Thanks.