---
name: "systool"
section: "1"
platform: "linux"
package: "sysfsutils"
version: "2.1.1-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/systool"
---

# systool(1)

view system device information by bus, class, and topology

## NAME

systool - view system device information by bus, class, and topology

## SYNOPSIS

**systool** \[*options* \[*device*\]\]

## DESCRIPTION

Calling **systool** without parameters will present all available bus types, device classes, and root devices.

When *device* is supplied, the information requested by *options* is shown only for the specified device, otherwise all present devices are displayed.

**systool** uses APIs provided by **libsysfs** to gather information. **systool** runs only on Linux systems running kernels 2.5 or later, with the sysfs filesystem mounted.

## OPTIONS

- **-a**

  Show attributes of the requested resource.

- **-b *bus***

  Show information for a specific bus.

- **-c *class***

  Show information for a specific class.

- **-d**

  Show only devices.

- **-h**

  Show usage.

- **-m *module\_name***

  Show information for a specific module.

- **-p**

  Show absolute sysfs path to the resource.

- **-v**

  Show all attributes with values.

- **-A *attribute***

  Show attribute value for the requested resource.

- **-D**

  Show only drivers.

- **-P**

  Show device's parent.

## SEE ALSO

The web page of **libsysfs** at \<http://linux-diag.sourceforge.net/Sysfsutils.html\>.

## AUTHOR

**systool** was written by Ananth Mavinakayanahalli \<ananth@in.ibm.com\> and Daniel Stekloff \<dsteklof@us.ibm.com\>.

This man page was contributed by Martin Pitt \<mpitt@debian.org\> for the Debian system (but may be used by others).