`?$?` Show available '$' variables and aliases

To get the values of any of these variables, use ?$

Usage: ?v [$.]

$$ here (current virtual seek)
$? last comparison value
$alias=value Alias commands (simple macros)
Set aliases for commands. Example $foo=db main, dc, drr
$b block size
$B base address (aligned lowest map address)
$f jump fail address (e.g. jz 0x10 => next instruction)
$fl flag length (size) at current address (fla; pD $l @ entry0)
$F current function size
$FB begin of function
$Fb address of the current basic block
$Fs size of the current basic block
$FE end of function
$FS function size
$Fj function jump destination
$Ff function false destination
$FI function instructions
$c,$r get width and height of terminal
$Cn get nth call of function
$Dn get nth data reference in function
$D current debug map base address ?v $D @ rsp
$DD current debug map size
$e 1 if end of block, else 0
$j jump address (e.g. jmp 0x10, jz 0x10 => 0x10)
$Ja get nth jump of function
$Xn get nth xref of function
$l opcode length
$m opcode memory reference (e.g. mov eax,[0x10] => 0x10)
$M map address (lowest map address)
$o here (current disk io offset)
$p getpid()
$P pid of children (only in debug)
$s file size
$S section offset
$SS section size
$v opcode immediate value (e.g. lui a0,0x8010 => 0x8010)
$w get word size, 4 if asm.bits=32, 8 if 64, ...
${ev} get value of eval config variable
$k{kv} get value of an sdb query value
RNum $variables usable in math expressions