Environment

.Q

.Q.k	Interpreter version number for which q.k has been written
.Q.w	Memory stats as a dictionary
.Q.x	Non-command parameters from the command line

.z

.z.a	current IP address	.z.b	dependencies
.z.c	number of cores	.z.f	name of q script
.z.h	name of host	.z.i	PID
.z.k	release date	.z.K	version
.z.l	license	.z.n	UTC timespan
.z.N	local timespan	.z.o	OS version
.z.p	UTC timestamp	.z.P	local timestamp
.z.q	quiet mode	.z.u	user ID
.z.X	raw command line	.z.z	UTC datetime
.z.Z	local datetime

.z.t .z.T .z.d .z.D (temporal shortcuts)