https://manpages.ubuntu.com/manpages/xenial/man3/FunRef.3.html
Ubuntu Manpage: FunRef - the Funtools Reference Handle
the Funtools Reference Handle
ubuntumanpagereferencehandle
https://manpages.ubuntu.com/manpages/xenial/man3/FunColumnActivate.3.html
Ubuntu Manpage: FunColumnActivate - activate Funtools columns
activate Funtools columns
ubuntumanpageactivatecolumns
https://manpages.ubuntu.com/manpages/focal/man7/funtools.7.html
Ubuntu Manpage: Funtools - FITS Users Need Tools
FITS Users Need Tools
ubuntumanpagefitsusersneed
https://manpages.ubuntu.com/manpages/resolute/man7/funds9.7.html
Ubuntu Manpage: FunDS9 - Funtools and DS9 Image Display
Funtools and DS9 Image Display
ubuntumanpageimagedisplay
https://manpages.ubuntu.com/manpages/xenial/man3/FunOpen.3.html
Ubuntu Manpage: FunOpen - open a Funtools data file
open a Funtools data file
open aubuntumanpagedatafile