2 .\" Copyright (c) 2006 Maxim Sobolev <sobomax@FreeBSD.org>
3 .\" All rights reserved.
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33 .Nd "display or modify contents of the EEPROM or NVRAM"
38 .Oo Fl d Ar name Oc Ar ...
39 .Op Ar name Ns = Ns Ar value ...
43 utility provides an interface for displaying and changing the system's
44 configuration variables contained in EEPROM or NVRAM.
45 In the first synopsis form, all available configuration variables and their
46 current values are printed.
47 In the second form, the variable selected by
49 is either removed or its value is changed to the
55 The following options are available:
56 .Bl -tag -width indent
58 Delete the variable selected by
60 from the EEPROM or NVRAM.
63 flag can be specified multiple times, in which case multiple variables
66 Print all available configuration variables and their current values.
69 Print all available configuration variables and their current values:
73 Remove the variable named
74 .Va local-mac-address? :
76 .Dl "nvram -d local-mac-address\e?"
79 .Va local-mac-address?
83 .Dl "nvram local-mac-address\e?=true"
87 in the above examples is used to keep the shell from interpreting the
90 Remove variables named
94 and set variable named
99 .Dl "nvram -d foo -d bar baz=100"
105 utility first appeared in
107 It is inspired by the
112 .An Maxim Sobolev Aq Mt sobomax@FreeBSD.org