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  1. #!/bin/bash
  2. s="26 3 24 21 391
  3. 26 34 24
  4. 26 3 49 24 21 391
  5. 26 94 24
  6. 26 3 21 391
  7. 26 3 
  8. 27 3 24 21 391
  9. 2 94"
  10. grep -Ev '\b[29]4\b' <<< "$s"
Success #stdin #stdout 0s 19632KB
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Standard input is empty
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26 3 21 391
26 3
https://ideone.com/gXPb1P
language:
Bash (bash 5.0.3)
created:
7 years ago
visibility:
secret

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