OptionsOn sysctl itself
-A-a
List all the currently available non-opaque values
-b
Force the value of the variable(s) to be output in raw, binary format
-d
Print the description of the variable instead of its value
-e
Separate the name and the value of the variable(s) with '=' <variable>
-h
Format output for human, rather than machine, readability
-N
Show only variable names, not their values
-n
Show only variable values, not their names
-o
Show opaque variables (which are normally suppressed)
-q
Suppress some warnings generated by sysctl to standard error
-X
Equivalent to -x -a (for compatibility)
-x
As -o, but prints a hex dump of the entire value instead of just the first few bytes
