2023.6.5 Problem: 193. Valid Phone Numbers

[umdreamer]

193. Valid Phone Numbers Problem Link

Given a text file file.txt that contains a list of phone numbers (one per line), write a one-liner bash script to print all valid phone numbers.

You may assume that a valid phone number must appear in one of the following two formats: (xxx) xxx-xxxx or xxx-xxx-xxxx. (x means a digit)

You may also assume each line in the text file must not contain leading or trailing white spaces.

Example:

Assume that file.txt has the following content:

987-123-4567
123 456 7890
(123) 456-7890

Your script should output the following valid phone numbers:

987-123-4567
(123) 456-7890

[ZWJ2212061008]

[yeyuxq]

[zyhzxy99]

[tangyexi]

[liu-si-han]

[sjh397]

[zhjingyan]

[daowuwu]

[PinkyLame]

[cuixiao02]

[mafanjia]

[zxm-1235]

[foxbou]

[bedauern]

[huangyumei1]

[syr2212061031]

[12baoxingyu-6]

[686xiaozhang]

[FXL1006]

[Lggg1234]

[24zlx]

[123lrb]

[liuhuanyu6]

[gusuning]

[1125766961]

[promisewith7]

[xkqwww]

[wangshiqi7]

[naqianqpg]

[htywan]

[xiaolu2002]

[shylieisme]