EPOLL (man7)
epoll − I/O event notification facility
epoll − I/O event notification facility
des_modes − the variants of DES and other crypto algorithms of OpenSSL
systemd.time − Time and date specifications
display-quartz : Display using Quartz2D on Mac OSX
file-hierarchy − File system hierarchy overview
rtnetlink − Linux IPv4 routing socket
hwdb − Hardware Database
groff_me − “me” macro package for formatting documents with GNU roff
glob − globbing pathnames
UPower − System−wide Power Management