carta
fstyp_udf(8)

fstyp_udf8

Check for a udf volume

Usage

fstyp_udf device

Overview

The fstyp_udf utility is not intended to be run directly, but rather called by fstyp(8) while it is trying to determine which file system type is present on the given device. It returns 1 if it thinks the device contains a UDF volume, and 0 otherwise.

From diskdev_cmds 757 in macOS 26.5. Parsed by carta from the page's mdoc source.