How To Migrate Mailboxes Between IMAP Servers With imapcopy

/usr/local/imap_tools/imapcopy.pl -S server1.example.com/sales@example.com/secret -D server2.example.com/sales@example.com/secret http://www.howtoforge.com/how-to-migrate-mailboxes-between-imap-servers-with-imap-tools

Beyond grep: ack, a source code search tool for programmers

ack is a tool like grep, optimized for programmers