or download this
[root@H99 bin]# crontab -l | grep user_history_Feb
01 22 29 2 * /usr/local/bin/user_history_Feb
[root@H99 bin]# uname -a
Linux H99 2.6.18-274.17.1.el5 #1 SMP Wed Jan 4 22:45:44 EST 2012 x86_6
+4 x86_64 x86_64 GNU/Linux
[root@H99 bin]#