#193 Valid Phone Numbers
https://leetcode.com/problems/valid-phone-numbers/
grep -E "^(\([0-9]{3}\) |[0-9]{3}\-)[0-9]{3}\-[0-9]{4}$" file.txtLast updated
Was this helpful?
https://leetcode.com/problems/valid-phone-numbers/
grep -E "^(\([0-9]{3}\) |[0-9]{3}\-)[0-9]{3}\-[0-9]{4}$" file.txtLast updated
Was this helpful?