in reply to Extracting Pattern Match from log
cat /var/log/mail/info | perl -n -e 'print $1, $/ if /450 <([^>]*)>/' [download]
Ladies and gentlemen, we have a new nominee for the Useless Use of Cat Award ! ;)
This would do exactly the same, yet without abusing cat:
perl -n -e 'print $1, $/ if /450 <([^>]*)>/' /var/log/mail/info [download]