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  1. #!/bin/bash
  2. s='2.1.1.0/24
  3. 2.2.2.0/24
  4. 21.2.2.0/24
  5. 24.5.7.0/24
  6. 22.6.7.0/24
  7. 224.25.75.0/24'
  8. grep '^2[.]' <<< "$s"
Success #stdin #stdout 0.01s 5316KB
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Standard input is empty
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2.1.1.0/24
2.2.2.0/24
https://ideone.com/eEstZ1
language:
Bash (bash 5.0.3)
created:
3 years ago
visibility:
secret

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