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  1. #!/bin/bash
  2. s="bar
  3. quux
  4. kabe
  5. Ass
  6. sBo
  7. CcdD
  8. FGH"
  9. grep '^[[:lower:]]*[[:upper:]][[:lower:]]*$' <<< "$s"
Success #stdin #stdout 0s 4516KB
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Standard input is empty
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Ass
sBo
https://ideone.com/k6mFsZ
language:
Bash (bash 5.0.3)
created:
4 years ago
visibility:
secret

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