Understanding CLI command parts in under 5 min

This page aims to briefly explain the different parts a command is built up from, such as Arguments, Options, (Sub-)Commands, etc.

docker buildx build [OPTIONS] PATH | URL | -

The above given command can be split into multiple pieces that represent a single part each like follows:

name	description	note
docker	invocation name of the program	often also refered to as 'program name'
buildx	command	the immediate command instruction to execute
build	subcommand	not necessarily given, depends on app
[OPTIONS]	options for the cli program	additional config, e.g. verbose/debug mode
PATH | URL | -	arguments that are required for the command/subcommand combination to execute.