freebsd-dev/release/picobsd/help/sysctl.hlp.en

sysctl get or set kernel state
 
Usage:
 
sysctl [-bnX] variable ...
sysctl [-bnX] -w variable=value ...
sysctl [-bnX] -a
sysctl [-bnX] -A
 
To see the whole MIB table use:
sysctl -a
 
To set specific variable to new value use:
 
sysctl -w variable=value