Exercises

• Create a pipeline that reads text files, finds the number of occurrences of a given phrase in each text file, and calculate the total number of occurrences of the phrase in all files.
• Create a pipeline for calculating the sum of the squares of all of the natural numbers in a given range.
• Remove the time.Sleep(1 * time.Second) statement from the simple.go program and see what happens. Why is that?
• Modify the Go code of pipeline.go in order to create a pipeline with five functions and the appropriate number of channels.
• Modify the Go code of pipeline.go in order to find out what will happen when you forget to close the out channel of the first() function.