Netlist for sample RC schematic

RC.cir

* Qucs 0.0.19  /home/vvk/.qucs/RC.sch

* Start of parameters section
* Parameters and directives such as .INCLUDE are placed here
.PARAM Rs=1k
.PARAM Cp=1000p
* End of paprameters section


* Components
C1 0 out  {CP} 
V1 in 0 DC 0 SIN(0 1 1000K 0 0) AC 1
R1 in out  {RS}
* End of components

* Simulations represented as Nutmeg scripts
.control

* Initial commands. Clear some simultion outputs
echo "" > spice4qucs.cir.noise
echo "" > spice4qucs.cir.pz
*End of initial commands

*Duplicate parameters here (taken from Eqn1 component)
let Rs=1k
let Cp=1000p

*Transient simulation
tran 2.997e-09 3e-06 0 

*Postrporcessor equations from Eqn1
let Vr=V(in)-V(out)

*Write output file. Unique file for each simulation.
write RC_tran.txt v(in) v(out)  Vr

*Closing 
destroy all
reset

*Repeat previous sections for each simulation
*The next is AC
let Rs=1k
let Cp=1000p
ac lin 1000 1 1000k 
let K=V(out)/V(in)
write RC_ac.txt v(in) v(out)  K
destroy all
reset

*End of netlist
exit
.endc
.END