VMD-L Mailing List

From: Prathit Chatterjee (pc20apr_at_REMOVE_yahoo.co.in)
Date: Wed Jun 03 2020 - 22:56:41 CDT

Dear VMD experts,

This is regarding selecting selected characters of a variable with tcl scripting in VMD.
I want to select first few characters of a variable, for example, first three characters (app) of the variable "apple":
======
vmd > set a apple
apple
vmd > string length $a
5
======
I am trying to play around with the command string but could not figure out so far.

Any relevant comments/suggestions will be greatly appreciated.
Thank you in advance,
Regards,
Prathit