I have a mail directory with several hundred spammish emails that have been collecting over the past month. I haven't gotten around to processing them yet ([EMAIL PROTECTED] if available, blocked if not) I would like to write a script that would extract the IP addresses from all these emails, but I can't figure out how to get grep to cooperate. I created a perl regular expression for matching against IP addresses and tried to pass it to grep, but it wouldn't return anything. I don't know what I'm doing wrong. Here's my command:
[EMAIL PROTECTED] ~/.maildir/.SPAM/cur $ cat * | grep -P m/\d+\.\d+\.\d +\.\d+/ -- gentoo-user@gentoo.org mailing list
