VGIMPORT (man8)
vgimport − Register exported volume group with system
vgimport − Register exported volume group with system
btrfs-filesystem − command group that primarily does work on the whole filesystems
matchall − traffic control filter that matches every packet
service − run a System V init script
dracut-cmdline.service − runs the dracut hooks to parse the kernel command line
tracepath − traces path to a network host discovering MTU along this path
photorec − Recover lost files from harddisk, digital camera and cdrom
ip-rule − routing policy database management
mkfs.cramfs − make compressed ROM file system
unbound − Unbound DNS validating resolver 1.13.0.