Galax is installed in the following two directories:

o:\cse\courses\cse444\04au\Galax035Win32\bin  --- the Windows version
o:\cse\courses\cse444\03au\Galax040Linux\bin  --- the Linux version

Technically, that's all you need to know to do the homework problems on
XQuery. For a more gentle introduction on how to use Galax, read on.  
This small tutorial is for Windows only.  For Linux, follow similar steps.

1. Type:

   o:
   cd \cse\courses\cse444\04au

2. Type 'dir'.  You should get something like that:

10/26/2004  08:57 PM    <DIR>          .
09/17/2004  11:48 AM    <DIR>          ..
10/24/2003  04:35 PM               192 q2.xq
10/26/2004  08:41 PM    <DIR>          Galax035Win32
10/26/2004  08:13 PM             4,416 mondial-3.0.dtd
10/26/2004  08:13 PM         1,784,825 mondial-3.0.xml
02/12/2004  05:08 PM               128 q1.xq
08/06/2004  10:02 AM    <DIR>          Galax-0.4.0Linux

mondial-3.0.xml is a copy of the XML document you will use for the homework.

3. Look at the files q1.xq and q2.xq. For q1.xq you should see:

<result>
{ for $x in document("mondial-3.0.xml")/mondial/country//city/name/text()
  return 
   <c> { $x } </c>
}
</result>

For q2.xq you should see:

<answer>
 { for $x in document("mondial-3.0.xml")/mondial/country[@name="Peru"]/province[count(city)>1]/@name
  return
     <big-province> { fn:string($x) } </big-province>
 }
</answer>

4. Type:

   Galax035Win32\bin\galax.exe  q1.xq

   In a few seconds galax will print the result for you.  In this case
   it's the list of all city names in the database.  Notice that
   cities occur either under country, or under province.  In order to
   get both we used country//city.

5. Now try 

   Galax035Win32\bin\galax.exe  q2.xq

   You are getting the names of all provinces in Peru with at least
   two cities.

6. Finally, try:

   Galax035Win32\bin\galax.exe  q2.xq  >  myfile.xml

This creates myfile.xml with your result.