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  1. #!/usr/bin/env bash
  2.  
  3. str=RATTUS_littleBoy.cluster_000621.ok.ok.ok.ok
  4. substr=${str#*.}
  5. result=${substr%%.*}
  6.  
  7. echo "$result"
Success #stdin #stdout 0s 19632KB
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Standard input is empty
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cluster_000621
https://ideone.com/G5TVoB
language:
Bash (bash 5.0.3)
created:
7 years ago
visibility:
public

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