Just like verbs are actions in a sentence and adverdbs modifiy verbs, so in newt tool, commands are actions and flags modify actions. A command can have subcommands, too. Arguments to commands and subcommands, with appropriate flags, will dictate the execution and result of a command.
For instance, in the example below, the newt command has the subcommand
target set in which the argument 'my_target1' is the target whose attribute, arch, is set to 'cortex_md.'
newt target set my_target1 arch=cortex_m4
Global flags work uniformly across newt commands. Consider the flag
-v, --verbose, It works both for command and subcommands, to generate verbose output. Likewise, the help flag
--help, to print helpful messsages.
A command may additionally take flags specific to it. For example, the
-b flag instructs
newt pkg install to install the pkg from a git
newt pkg install -b <branchname> <eggname>
In addition to the Newt Tool Manual in docs, command-line help is available for each command (and subcommand), through the
$ newt target export --help Export build targets from the current nest, and print them to standard output. If the -a (or -export-all) option is specified, then all targets will be exported. Otherwise, <target-name> must be specified, and only that target will be exported. Usage: newt target export [flags] Examples: newt target export [-a -export-all] [<target-name>] newt target export -a > my_exports.txt newt target export my_target > my_target_export.txt Flags: -a, --export-all=false: If present, export all targets -h, --help=false: help for export Global Flags: -l, --loglevel="WARN": Log level, defaults to WARN. -q, --quiet=false: Be quiet; only display error output. -s, --silent=false: Be silent; don't output anything. -v, --verbose=false: Enable verbose output when executing commands.