Syntax:
SHOW [FULL] PROCESSLIST

SHOW PROCESSLIST shows which threads are running. If you have the
PROCESS privilege, you can see all threads. Otherwise, you can see only
your own threads (that is, threads associated with the MySQL account
that you are using). If you do not use the FULL keyword, only the first
100 characters of each statement are shown in the Info field.

URL: http://dev.mysql.com/doc/refman/5.5/en/show-processlist.html

