tldr/pages/linux/systemd-hwdb.md

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# systemd-hwdb
> Hardware database management tool.
> More information: <https://www.freedesktop.org/software/systemd/man/systemd-hwdb.html>.
- Update the binary hardware database in `/etc/udev`:
`systemd-hwdb update`
- Query the hardware database and print the result for a specific modalias:
`systemd-hwdb query {{modalias}}`
- Update the binary hardware database, returning a non-zero exit value on any parsing error:
`systemd-hwdb --strict update`
- Update the binary hardware database in `/usr/lib/udev`:
`systemd-hwdb --usr update`
- Update the binary hardware database in the specified root path:
`systemd-hwdb --root={{path/to/root}} update`