Before moving onto demonstrating CLI’s parsing of command-line arguments based on these anticipated options, it is worth noting CLI’s support for usage information and help information via the ...

The idea is pretty simple. Nearly all command line Python programs use argparse to simplify picking options and arguments off the command line as well as providing some help.

The former ultimately runs the command “figlet” with arguments “foobar” and “bar baz” on the local machine. The second does the same, except with ssh being involved in the middle.

This is a pretty classic way to parse and process command-line arguments, actually. Check the value of $1, and if it's a known flag, change a default variable or two, then use the shift command to ...

The next time you need to examine command line arguments and things get a little complex, whip out your trusty open source Java toolkit, and use Command Line Interface (CLI).