A straightforward command-line interface (CLI) that counts the number of words in a text file provided as an argument, crafted in Go with the urfave cli library.
To run the CLI, use the following command:
$ go run main.go -f tmp.txt
Observation: you need to specify the file path by using the flag --file or -f.
To display the help menu, utilize the flag --help or -h:
$ go run main.go --help