C:/DOS C:/DOS/RUN RUN/DOS/RUN

C:\DOS C:\DOS\RUN RUN\DOS\RUN is a computing joke referring to a famous American children's book which helped children develop sentences. It is pronounced as "See DOS. See DOS run. Run DOS run." The original book contained the words: "See Spot." "See Spot Run." "Run Spot Run."

It was once shown on an episode of The Simpsons.