mysqldump error 1064 for database Use command

[Manasi Save]

Hi All,

I have 10 mysql databases all the tables use MyIsAm mysql storage engine. 
Database names are 1,2,3,4,...10. 

When I use mysqldump command with --all-databases option. This gives me following error:

mysqldump -u myuser -p --all-databases > AllNew_Databases_20100904.sql

ERROR MESSAGE :-

mysqldump: Couldn't execute 'use 1': You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right syntax to use near '1'
at line 1 (1064)

Can anyone provide any input on this. I have never got this error before. The backups
uptill now was happening properly. Please let me know if I am missing out any information
which should be provided to get more clear idea about this error. 

Any input will be a great help. 

Thanks in advance. 
 --
Regards,
 Manasi Save


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