NAME¶
kenv —
dump or modify the kernel
environment
SYNOPSIS¶
| kenv |
[-q]
variable[=value] |
DESCRIPTION¶
The
kenv 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,
kenv will
only report that value. If the
-u option is specified,
kenv will delete the given environment variable. If the
environment variable is followed by an optional
value,
kenv 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.
Variables can be added to the kernel environment using the
/boot/loader.conf file, or also statically compiled into the
kernel using the statement
env
filename
in the kernel config file. The file can contain lines of the form
name = value # this is a comment
where whitespace around name and '=', and everything after a '#' character, are
ignored. Almost any printable character except '=' is acceptable as part of a
name. Quotes are optional and necessary only if the value contains whitespace.
SEE ALSO¶
kenv(2),
config(5),
loader.conf(5),
loader(8)
HISTORY¶
The
kenv utility appeared in
FreeBSD
4.1.1.
