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Linux regular expressions: file name: lab3test.txt Create regular expressions that meet the following criteria. You may...

Linux regular expressions:

file name: lab3test.txt

Create regular expressions that meet the following criteria. You may use grep or egrep to answer these questions.

1.Match any lines that contain a phone number with the format 222-222-2222.

Solutions

Expert Solution

Here is the linux command that matches the given criteria. It not only matchs "222-222-2222" format, but also matches

  1. (222)222-2222

  2. 222 222 2222

  3. 2222222222

Please let me know if you need any modifications.

Command:

grep '[0-9]\{3\}[ -]\?[0-9]\{3\}[ -]\?[0-9]\{4\}' phonenumbers

Grep is a Linux / Unix command-line tool used to search for a string of characters in a specified file. The text search pattern is called a regular expression.

Where phonenumbers is the name of the file where numbers exists.

Output:

If you have any doubts, leave a comment below before rating. I'll be happy to assist you further.

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venereology answered 2 years ago
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