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  1. #!/bin/bash
  2. s="Text
  3. Version : 3.4.0.0 xxx xxx xxx
  4. More text
  5. Version : 5.6.0.0 xxx xxx xxx"
  6. grep  -oPm 1 'Version\s*:\s*\K\d+(?:\.\d+)+' <<< "$s"
Success #stdin #stdout 0s 19632KB
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Standard input is empty
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3.4.0.0
https://ideone.com/1UHQwg
language:
Bash (bash 5.0.3)
created:
6 years ago
visibility:
secret

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