The
utility will dump the kernel environment if
invoked without arguments.
If the
-h
option is specified, it will limit the report to kernel probe hints.
If an optional
variable
name is specified,
will only report that value.
If the
-u
option is specified,
will delete the given environment variable.
If the environment variable is followed by an optional
value
will set the environment variable to this value.
If the
-q
option is set, warnings normally printed as a result of being unable to
perform the requested operation will be suppressed.