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Answer by quanta for grep out unique senders from a huge list of emails
Try this: awk '/^From: / { print $2 }' /home/user/mail/new | sort | uniq -c | sort -rn It's not one file, each email is about 20K, and the total emails amount to 30G. awk '/^From: / { print $2 }'...
View ArticleAnswer by Farhan for grep out unique senders from a huge list of emails
To get total number of emails, run: grep From: /home/user/mail/new | wc -l to get the count of emails from root, run this grep ^From /home/user/mail/new | grep root\@hostname.com | wc -l now (Total...
View ArticleAnswer by dmourati for grep out unique senders from a huge list of emails
$ grep -E '^From:' /some/file | uniq
View Articlegrep out unique senders from a huge list of emails
I just found a huge list of emails under my user account in Centos /home/user/mail/new I opened some of them and noticed they were sent from a particular cron job. From address is root@hostname.com. I...
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