A Linux administrator needs to generate a compact, one-line-per-device report of all Physical Volumes (PVs) currently recognized by the Logical Volume Manager (LVM). The report should be easily parsable and suitable for a quick overview. Which of the following commands is the most appropriate for this task?
vgdisplay
lsblk
pvdisplay
pvs
The correct command is pvs. The pvs command is designed to display summary information about Physical Volumes in a configurable, table-like format, with each PV on a single line. This makes it ideal for scripting and quick, scannable overviews. The pvdisplay command provides a much more verbose, multi-line output for each PV. The vgdisplay command reports on Volume Groups, not individual Physical Volumes. The lsblk command lists all block devices and is not a specific LVM reporting tool, though it can show LVM membership.
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