options nonotes nodate nonumber nocenter formdlim  ='-';

libname contents 'C:\proccontents';

data contents.test;
   d=2;
   b001 =1;
   b002 =2;
   b003 =3;
   b001z=1;
   B001a=2;
   CaSeSeNsItIvE2=9;
   CASESENSITIVE3=9;
   D=2;
   casesensitive1=9;
   CaSeSeNsItIvE1a=9;
   d001z=1;
   CASESENSITIVE1C=9;
   D001a=2;
   casesensitive1b=9;
   A =1;
   a002 =2;
   a =3;
   a001z=1;
   A001a=2;

run;

%let mydata=contents.test;

ods output Variables=var1(keep=Num Variable);
ods listing close;

proc contents data=&mydata;
run;

ods listing;
    title "Default options";

proc print data=var1 noobs;
run;

ods output Variables=var2(keep=Num Variable);
ods listing close;

proc contents order=collate data=&mydata;
run;

ods listing;
    title "order=collate option";

proc print data=var2 noobs;
run;

ods output Variables=var3(keep=Num Variable);
ods listing close;

proc contents order=casecollate data=&mydata;
run;

ods listing;
    title "order=casecollate option";

proc print data=var3 noobs;
run;

ods output Variables=var4(keep=Num Variable);
ods listing close;

proc contents order=ignorecase data=&mydata;
run;

ods listing;
    title "order=ignorecase option";

proc print data=var4 noobs;
run;

ods output Position=var5(keep=Num Variable);
ods listing close;

proc contents data=&mydata varnum;
run;

ods listing;
    title "varnum option";

proc print data=var5 noobs;
run;  

Program Description