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  1. #!/bin/bash
  2.  s='123 456 857 112 i21.'
  3.  grep -oP '\b[^\D37]+\b' <<< "$s"
Success #stdin #stdout 0.01s 5524KB
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Standard input is empty
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456
112
https://ideone.com/SzJaYX
language:
Bash (bash 5.0.3)
created:
4 years ago
visibility:
secret

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