When running long code streams, waiting in front of the computer watching the program run can be excruciating. Sometimes I find myself doing this if I do not know how long the code will run, or if there will be errors returned. (I also sit in front of the computer because I enjoy watching cat gifs and the old school de-fragmentation screens, so who knows…) But you don’t have to! Go out and accomplish something else while your computer chugs away. With the useful command sendmail, we can send messages to our email or phone with some simple commands. Through this post, I’ll share some sample .m files that we commonly use to notify ourselves of code completion or errors.