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  1. #!/bin/bash
  2. echo "one
  3. two" | sed 'N;s/[[:alnum:][:punct:][:blank:]]/_/g'
Success #stdin #stdout 0s 19632KB
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https://ideone.com/lMg6Fn
language:
Bash (bash 5.0.3)
created:
5 years ago
visibility:
secret

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