IWPRIV (man8)
iwpriv − configure optionals (private) parameters of a wireless network interface
gnu-linux
iwpriv − configure optionals (private) parameters of a wireless network interface
tunelp − set various parameters for the lp device
ip-addrlabel − protocol address label management
dmsetup — low level logical volume management
pam_faildelay − Change the delay on failure per−application
era_invalidate – Provide a list of blocks that have changed since a particular era.
tcpdchk − tcp wrapper configuration checker
ntfsclone − Efficiently clone, image, restore or rescue an NTFS
nfnl_osf − OS fingerprint loader utility
userdel − delete a user account and related files