Exercises

• Use the functionality of byCharacter.go, byLine.go, and byWord.go in order to create a simplified version of the wc(1) UNIX utility.
• Create a full version of the wc(1) UNIX utility using the viper package for processing command-line options.
• Create a full version of the wc(1) UNIX utility using commands instead of command-line options with the help of the cobra package.
• Modify JSONstreams.go to accept user data or data from a file.
• Modify embedFiles.go in order to save the binary file at a user-selected location.
• Modify ioFS.go in order to get the desired command as well as the search string as a command-line argument.
• Make ioFS.go a cobra project.
• The byLine.go utility uses ReadString('\n') to read the input file. Modify the code to use Scanner (https://golang.org/pkg/bufio/#Scanner) for reading.
• Similarly, byWord.go uses ReadString('\n') to read the input file—modify the code to use Scanner...