The Complete Practical Docker Guide - Command Arguments

The video tutorial explains the use of command options and arguments in command-line interfaces. It covers the difference between short and long options, how to find available options using help commands, and the role of arguments as user inputs. The tutorial demonstrates creating directories with the mkdir command and removing them with the RM command, highlighting the use of multiple arguments and options. It concludes with a discussion on using arguments for specific options.

What is the difference between short and long options in command usage?

• Short options use one dash and a single character, long options use two dashes and words.

• Short options use two dashes, long options use one.

• Short options are always mandatory, long options are optional.

• Short options are case-sensitive, long options are not.

How can you find out which options are available for a command?

• By asking a colleague.

• By using the command with '-help' or consulting the man pages.

• By checking the command's website.

• By using the command with '-info'.

What is an argument in the context of command usage?

• A type of command that does not require options.

• A mandatory option for every command.

• A variable input provided by the user.

• A fixed parameter that cannot be changed.

What happens if you try to use 'mkdir' without an argument?

• It opens a help menu.

• It shows an error indicating a missing operand.

• It creates a default directory.

• It lists all existing directories.

How can you create multiple directories in one command using 'mkdir'?

• By using a comma to separate directory names.

• By listing directory names separated by spaces.

• By using a semicolon to separate directory names.

• By using the '-multi' option.

What does the '-R' option do in the 'rm' command?

• Removes directories and their contents recursively.

• Removes files only.

• Renames files and directories.

• Restores deleted files.

Can all options in commands have arguments?

• No, options never require arguments.

• Yes, but only in advanced commands.

• No, only some options require arguments.

• Yes, all options require arguments.