How do you delete variables?

[jlablackbird]

I read the little clip in the help screen.
8.2 DELETE VARIABLES
====================

     DELETE VARIABLES var_list.

   DELETE VARIABLES deletes the specified variables from the
dictionary.  It may not be used to delete all variables from the
dictionary; use NEW FILE to do that (*Note NEW FILE::).

   DELETE VARIABLES should not used after defining transformations and
before executing a procedure.  If it is used in such a context, it
causes the data to be read.  If it is used while TEMPORARY is in
effect, it causes the temporary transformations to become permanent.

_____________________________________

It does not really help me.  How do I enter the command and where does it
go?  Do I write in the name of the variable I want to delete?  I ended up
with some extra variables that I did not want to have.  I'd like to clean up
the files.  

I'm afraid if I put in the command wrong, I may delete all my variables?  I
am new to PSPP.  Can someone please walk me though the process.  I'm not
super "techie."

Thanks,
Julia
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