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  1. #!/bin/bash
  2. echo "AB345678"  | sed -n '/^\([a-zA-Z]\{2\}[0-9]\{6\}\|[0-9]\{8\}\)$/p'
Success #stdin #stdout 0s 5080KB
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Standard input is empty
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AB345678
https://ideone.com/yJu0lR
language:
Bash (bash 5.0.3)
created:
7 years ago
visibility:
secret

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