While doing some housekeeping on my computer I ran into a situation where I wanted to delete all files that had a (1) in the name.
I started by listing all files that ended in .jpg
$ ls *.jpg
I thought I could delete those files using basically the same syntax on the command line, but this is what I got when I tested it out.
After Googling around I found this article on apple.stackexchange.com that helped me figure it out.
You can use the \ to escape characters on the command line, like this:
$ ls *\(1\).jpg
Which lead to this solution: