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Regex: Character Ranges
EasyRegular Expressions3-5 minThe brief
Extract every line that contains at least one digit from /root/work/data.txt into /root/work/out.txt.
Lines with no digits at all must not appear.
What you'll do
- out.txt holds exactly the lines containing a digit
Hands-on lab: you work on a real Linux box in your browser, graded on the machine's actual state.