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  1. #!/bin/bash
  2. sed -E 's/([[:alnum:]])-($|[^[:alnum:]])/\1 -\2/g' <<< " - hi- 12-"
  3.  
Success #stdin #stdout 0s 19632KB
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Standard input is empty
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 - hi - 12 -
https://ideone.com/xw1Yps
language:
Bash (bash 5.0.3)
created:
6 years ago
visibility:
public

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