I tried Cadence MMSIM12.1 cracked with IC610. They are working when I write "spectre input.scs -64 + aps" in shell.
Cshell script you gave does not work and I got this message below.
* Error * The 'spectre' executable that you are using is an older version.
Use MMSIM60 or later version of Spectre with this release.
To check the spectre version, run 'spectre -W'.
Do you have bash script for Cadence MMSIM12.1 cracked with IC610.