How to delete a file with a weird name?

rm -i -- * will prompt you to delete each file. You can and should change '*' to a narrower match if there are a lot of files. The -- stops processing options, so a file named -d will be removed by rm successfully.

I've used that in the past and it works until you hit a special character or 2 that it does not like.

you can use ls -li to show all files by their inode. Then run this command to remove the file:

find . -inum ${INODE_NUM} -delete

I added -maxdepth 1 to my find just to be safe:

find . -maxdepth 1 -inum ${INODE_NUM} -delete