[CentOS] directory and file permission help

Fri Feb 5 13:51:34 UTC 2010
adrian kok <adriankok2000 at yahoo.com.hk>

Hi 

I move a zip file from window to linux

but all permission of folder and files are kept in 700 

How can I change it one time? I don't need to change directory under directory to change as

folder as 755
and 
files as 644

Thank you for your help

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