# tectonic -X build
Build the current document.
***This is a [V2 CLI][v2cli-ref] command. For information on the original (“V1”
CLI), see [its reference page][v1cli-ref].***
[v2cli-ref]: ../ref/v2cli.md
[v1cli-ref]: ../ref/v1cli.md
#### Usage Synopsis
```sh
tectonic -X build
[--keep-intermediates]
[--keep-logs]
[--only-cached]
[--print]
```
#### Remarks
This command builds the current document, as identified by searching for a
[Tectonic.toml][tectonic-toml] file in the current directory or one of its
parents. The build artifacts will be placed into the document’s build output
directory, which defaults to a subdirectory `build` of the document source
directory.
[tectonic-toml]: ../ref/tectonic-toml.md
#### Command-Line Options
The `--keep-intermediates` option (or `-k` for short) will cause the engine to
save intermediate files (such as `mydoc.aux` or `mydoc.bbl`) in the build output
directory. By default, these files are stored in memory but not actually written
to disk.
The `--keep-logs` option will cause the engine to save the main TeX log file
(`mydoc.log`) to disk. By default, this information is discarded.
The `--only-cached` option (or `-C` for short) will configure the engine to
refuse to connect to the network when searching for support files. This can be
useful if you’re working on a document in a context where the Internet is
unavailable (e.g., on an airplane). While the engine generally avoids
unnecessary network connections, referencing a new file in your document will
cause it to look for that file in the online support bundle.
The `--print` option (or `-p` for short) will cause the engine to print the
regular terminal output of the TeX engine. This output is similar to, but not
identical to, the contents of the log file. By default, this output is only
printed if the engine encounteres a fatal error.