fork(3) download 
  1. regexp {^\w+(?::\w+)*} "3001:470:8865:2E01::190:201" out
  2. puts $out
Success #stdin #stdout 0s 5352KB
comments (?)
stdin 
Standard input is empty
stdout 
3001:470:8865:2E01
https://ideone.com/T96I3A
language:
TCL (tcl 8.6)
created:
5 years ago
visibility:
secret

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