Linux is awsome

At work we process many millions of emails a day, so we get a lot of bounces. The following code helps me make the system smarter. It translates to “for the most recent five users who’s received a bounce message, find all of their bounces in the last 24 hours and show me the Subject lines, with user and date information.”

find `ls -1t | head -5` -type f -mtime -1 -print0 | xargs -0 egrep Subject /dev/null | less