Case is a package of two utilities, 'Upper' and 'Lower'.

Their main use is for in scripts.  Imagine if you wanted to check what a
user had typed ... think of all the different combinations of upper and
lower case the letters could be!  Using Case, you can convert the users
input into a fixed case, which can be checked easily!

Both utilities are used in the same way, the only difference being Upper
converts to upper case, and Lower to lower case.

Using the utilities is simple, eg typing "Upper aBcDe" will output "ABCDE"

If you wish to use environment variables, 

setenv Bob "My name is Bob!"
Lower $Bob

Output will be "my name is bob!"

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 1016    2100  48.4% -lh5- 9036 May 29  1996 Case.doc
[generic]                  566     732  77.3% -lh5- 3a14 Mar 30  1996 Lower
[generic]                  566     732  77.3% -lh5- d13b Mar 30  1996 Upper
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         3 files    2148    3564  60.3%            Jun  4  1996