> Your code will be in production either much longer or much shorter than you think it will. The 5 lines of code you spend three days perfecting will be replace

> Your code will be in production either much longer or much shorter than you think it will. The 5 lines of code you spend three days perfecting will be replaced in a week, and that one-line 3am hack will be out there for ten years. On that note, I was surprised to see this comment when looking through the source code of the now-venerable program traceroute - "Don't use this as a coding example. I was trying to find a routing problem and this code sort-of popped out after 48 hours without sleep. I was amazed it ever compiled, much less ran. [...] Van Jacobson (van@ee.lbl.gov) Tue Dec 20 03:50:13 PST 1988"