xbindkeys Paste Script is Failing to Work

I'm trying to bind control + i to load the contents of file.txt to the clipboard (so that I can use ctrl + v to paste the contents of file.txt into windows like my browser). The following command works perfectly if I manually type it into a bash terminal: xsel --clipboard < /home/paul/Dropbox/file.txt However, when I try to use xbindkeys to do it, it does not. This is what I have in my xbindkeys config: "xsel --clipboard < /home/paul/Dropbox/file.txt" control + i What could be causing this problem?