Hi all,

I have a file with X number of lines.
Somewhere within each line will be an email address following the format:

<telephone_number>@domain.net

Each line is not a set length and there are no delimiters to work with.

I want to write a script that extracts the telephone number from each line and writes this extract to a file.

I think the key to this is the '@' symbol, but i've had no luck constructing an awk command to extract the string (either 10 or 11 integers in length as per UK format) from immediatley before the @.

Can anyone help?

All assistance is much appreciated.

Kind Regards