The early environment is typically cleared, so these new options
need the PRESERVE_EARLY_KENV kernel config(8) option. These environments
are reported as missing by kenv(1) if the option is not present in the
running kernel.
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D30835
The contents of the kenv will be dumped to stdout, while dump could have
also meant 'discard'. Call it 'list' instead.
Suggested by: imp
Reviewed by: imp, jhb
Differential Revision: https://reviews.freebsd.org/D30836
scripts the way sysctl(8) is. The -N option, like in sysctl(8),
displays only the kenv names, not their values. The -v option prints an
individual kenv variable name with its value as name="value". This is
the inverse of sysctl(8)'s -n flag, since the default behaviour of
kenv(1) is already like sysctl(8) -n.
Submitted by: Garrett Cooper < yanegomi AT gmail DOT com >
MFC after: 1 week
used to extract modified boot hints to make loader(8)-time changes
"sticky". It tries to use \ style quoting so that it can be used directly
with foo.conf files. It can also extract specific variables.
