LTspice-Dot Commands List

This article introduces the LTspice dot commands in list form.

*Click on the dot commands to go to their respective explanatory articles.

Dot Commands for Basic Analysis

Dot Command	Explanation
.tran	Transient Analysis
.ac	AC Analysis
.dc	DC Sweep Analysis
.noise	Noise Analysis
.tf	DC Transfer Function Analysis
.op	DC Operating Point Analysis

Dot Commands for Applied Analysis and Analysis Aids

Dot Command	Explanation
.step	Parametric Analysis
.temp	Temperature Analysis
mc	Monte Carlo Analysis
.measure (.meas)	Evaluate User-Defined Electrical Quantities
.four	Compute a Fourier Component after a Transient Analysis(.tran)
.net	Compute Network Parameters in a AC Analysis(.ac)
.options	Set Simulator Options

Dot Commands to Include SPICE Model

Dot Command	Explanation
.lib	Include a Library
.include (.inc)	Include Another File

Dot Commands to Create User-Defined Parameters and Functions

Dot Command	Explanation
.param	User-Defined Parameters
.func	User Defined Functions

Dot Commands to define SPICE Model and Netlist

Dot Command	Explanation
.model	Define a SPICE Model
.subckt	Define a Subcircuit
.ends	End of Subcircuit Definition
.end	End of Netlist
.global	Declare Global Nodes

Dot Commands related to Simulator Initial Conditions

Dot Command	Explanation
.ic	Set Initial Conditions
.nodeset	Supply Hints for Initial DC Solution
.savebias	Save Operating Point to Disk
.loadbias	Load a Previously Solved DC Solution

Other Dot Commands

Dot Command	Explanation
.save	Limit the Quantity of Saved Data
.backanno	Annotate the Subcircuit Pin Names to the Port Currents
.ferret	Download a File Given the URL
.wave	Write Selected Nodes to a .Wav File
.nodealias	Short Circuit between Nodes
.softstart	Shortened Rise Time for a Step-Up/Step-Down Power Supply
.machine	Arbitrary State Machine