clear mysql-bin log file or disable mysql bin log

Step 1,
Go to folder
/var/lib/mysql

Step 2:
Run:
[root@localhost mysql]# mysqladmin -u xxxx -pxxxx flush-logs

Mysql will create a new bin-log file - for my server it is mysql-bin.000014
-rw-rw---- 1 mysql mysql 22770974 Jan 6 04:02 mysql-bin.000011
-rw-rw---- 1 mysql mysql 79427070 Jan 6 04:04 mysql-bin.000012
-rw-rw---- 1 mysql mysql 109593 Jan 6 04:07 mysql-bin.000013
-rw-rw---- 1 mysql mysql 1318 Jan 6 04:07 mysql-bin.000014
-rw-rw---- 1 mysql mysql 266 Jan 6 04:07 mysql-bin.index

Step 3:
You can delete all mysql-bin log file except the latest one.
Here is the sample:
rm mysql-bin.000004 -f
rm mysql-bin.000005 -f
rm mysql-bin.000006 -f
rm mysql-bin.000007 -f
rm mysql-bin.00000* -f


Delete mysql bin log file older than 2 days
find /var/lib/mysql/mysql-bin.* -mtime +2 -exec rm {} \;