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  1. #!/bin/bash
  2. s='test test test test'
  3. sed -E 's/\s+/|/;s/\s+/|/' <<< "$s"
Success #stdin #stdout 0.01s 5552KB
comments (?)
stdin 
Standard input is empty
stdout 
test|test|test test
https://ideone.com/sKHnXq
language:
Bash (bash 5.0.3)
created:
4 years ago
visibility:
secret

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