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  1. #!/bin/bash
  2. echo 'foo_bar_baz=foo_bar_baz' | sed -E ':a;s/^([^=_]*)_([[:alnum:]])/\1\U\2/g; ta'
Success #stdin #stdout 0s 4400KB
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Standard input is empty
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fooBarBaz=foo_bar_baz
https://ideone.com/O2qTC6
language:
Bash (bash 5.0.3)
created:
6 years ago
visibility:
public

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