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<h4 class="tagline">An OS to build, deploy and securely manage billions of devices</h4>
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<h4>Latest News:</h4> <a href="/download">Apache Mynewt 1.12.0, Apache NimBLE 1.7.0 </a> released (April 4, 2024)
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<h2 id="command-structure">Command Structure</h2>
<p>Just like verbs are actions in a sentence and adverbs modifiy verbs, so in the <em>newt</em> tool, commands are actions and flags modify actions. A command can have subcommands. Arguments to commands and subcommands, with appropriate flags, dictate the execution and result of a command. </p>
<p>For instance, in the example below, the <em>newt</em> command has the subcommand <code>target set</code> in which the argument 'my_target1' is the target whose attribute, <em>app</em>, is set to '@apache-mynewt-core/hw/bsp/nrf52dk'</p>
<div class="codehilite" style="background: #ffffff"><pre style="line-height: 125%;"><span></span><code> newt target set my_target1 app=@apache-mynewt-core/hw/bsp/nrf52dk
</code></pre></div>
<p>Global flags work uniformly across <em>newt</em> commands. Consider the flag <code>-v, --verbose,</code> It works both for command and subcommands, to generate verbose output. Likewise, the help flag <code>-h</code> or <code>--help,</code> to print helpful messsages.</p>
<p>A command may additionally take flags specific to it. For example, the <code>-n</code> flag instructs <code>newt debug</code> not to start GDB from command line.</p>
<div class="codehilite" style="background: #ffffff"><pre style="line-height: 125%;"><span></span><code> newt debug &lt;target-name&gt; -n
</code></pre></div>
<p>In addition to the <a href="../newt_intro/">Newt Tool Manual</a> in docs, command-line help is available for each command (and subcommand), through the <code>-h</code> or <code>--help</code> options. </p>
<div class="codehilite" style="background: #ffffff"><pre style="line-height: 125%;"><span></span><code> newt target --help
Commands to create, delete, configure, and query targets
Usage:
newt target [flags]
newt target [command]
Available Commands:
amend Add, change, or delete values for multi-value target variables
config View or populate a target&#39;s system configuration
copy Copy target
create Create a target
delete Delete target
dep View target&#39;s dependency graph
revdep View target&#39;s reverse-dependency graph
set Set target configuration variable
show View target configuration variables
Global Flags:
-h, --help Help for newt commands
-j, --jobs int Number of concurrent build jobs (default 8)
-l, --loglevel string Log level (default &quot;WARN&quot;)
-o, --outfile string Filename to tee output to
-q, --quiet Be quiet; only display error output
-s, --silent Be silent; don&#39;t output anything
-v, --verbose Enable verbose output when executing commands
Use &quot;newt target [command] --help&quot; for more information about a command.
</code></pre></div>
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