Home/ Questions/Q 8672051
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-12T19:06:19+00:00

Let’s say I have two text files that I need to extract data out

  • 0

Let’s say I have two text files that I need to extract data out of. The text of the two files is as follows:

File 1:

1name - randomemail@email.com
2Name - superrandomemail@email.com
3Name - 123random@email.com
4Name - random123@email.com

File 2: 

email.com
email.com
email.com
anotherwebsite.com

File 2 is File 1’s list of domain names, extracted from the email addresses.
These are not the same domain names by any means, and are quite random.

How can I get the results of the domain names that match File 2 from File 1?

Thank you in advance!

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Assuming that order does not matter, 

    grep -F -f FILE2 FILE1

    should do the trick. (This works because of a little-known fact: the -F option to grep doesn’t just mean “match this fixed string,” it means “match any of these newline-separated fixed strings.”)

    • 0