devfsadm

Devfsadm is a command line tool in Unix-like operating systems, primarily used in Solaris-based systems. It is responsible for managing and configuring device files. The tool dynamically adjusts these device files in response to changes in the system's hardware configuration. Devfsadm detects and configures new devices, as well as removes devices that are no longer present in the system.

One of the main purposes of devfsadm is to create device files in the /devices directory, which are used by the system to interact with hardware devices. When a new device is added to the system, devfsadm scans the system, detects the new device, and assigns a unique device file to it. This allows the device to be accessed by user programs.

Devfsadm also updates the /dev directory, which contains symbolic links to the device files in the /devices directory. These symbolic links provide a user-friendly interface for accessing the devices. When a new device is added or removed, devfsadm updates the symbolic links accordingly.

Devfsadm is typically used after installing or removing hardware devices, or when troubleshooting issues related to device configuration. It helps streamline the process of managing devices in a Unix-like system by automatically handling device file creation and removal.