Probably because you need to redirect your output into the file AFTER all
the options. Rewrite your command like this:

 mysqldump --flush-logs --add-drop-table -u root -p markloky  shuncheong >
 /backup/shuncheong.sql

See if that works. The way you had it written, you weren't passing the -u
and -p options to mysqldump. So, mysqldump was connecting as an unprivileged
user. 



On 4/2/01 9:08 AM, "Mark Lo (3)" <[EMAIL PROTECTED]> wrote:

> Hi,
> 
>  I would like to know how to backup mysql using crontab or cron jog.
> 
> I have add a line in my crontab file :
> mysqldump --flush-logs --add-drop-table shuncheong >
> /backup/shuncheong.sql -u root -pmarkloky;
> 
> but I got nothing in  shuncheong.sql file.
> 
> Thank you for your help
> 
> Mark Lo
> 
> 
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