Duplicate files

[Steven Vollom]

I just installed fdupes.  I want to lean my primary drive partition.  It 
is sda1.  I have 44gb of OS files and application files in a 50gb 
partition.  I need to either remove some unnedessary data, or increase 
the size of my primary drive.  Suggestions and how to, please.  I have 
read the fdupes tutorial, but I am not sure how to form a command to 
remove duplicate records from sda1.  Is sda1 a directory?

Thanks!

Steven