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lemon8888 / LeetCode Public

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LeetCode

/

0193-valid-phone-numbers.sh

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1 lines (1 loc) · 51 Bytes

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LeetCode

/

0193-valid-phone-numbers.sh

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1 lines (1 loc) · 51 Bytes

1

grep -P '^(\d{3}-|\(\d{3}\) )\d{3}-\d{4}$' file.txt

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