Changing some variables' names

[dustychair]

Hi all,

I am using the below code to change variables' names. This code is changing all of the variables' names however i don't want to change first 6 variables' names. could you please give me an idea on how to modify it?

Thanks

data tr2_rlb_mat_1;
set tr_rlb_mat_1;
filename tmp temp;
data _null_;
if 0 then set tr2_rlb_mat_1;
length _vname $60;
file tmp;
put 'rename ' @;
do i=1 by 1 until (upcase(_vname)='_VNAME');
call vnext(_vname);
if upcase(_vname)='_VNAME' then leave;
put _vname +(-1) '=V' i @;
end; 
put ';';
run;
proc datasets library=work nolist;
modify tr2_rlb_mat_1;
%include tmp / source2;
run;
quit;
ods select none;

[Kurt_Bremser · Accepted solution]

Make the PUT conditional:

if i gt 6 then put _vname +(-1) '=V' i @;