Modifying Nondefault Maps

To update a nondefault map, you must:

1. Create or edit its corresponding text file.

2. Build (or rebuild) the new or updated map. There are two ways to build a map:

   • Use the Makefile. Using the Makefile is the preferred method of building a non-default map. If the map has an entry in the Makefile, simply run make name where name is the name of map you want to build. If the map does not have a Makefile entry, try to create one following the instructions in "Modifying and Using the Makefile".

   • Use the /usr/sbin/makedbm program. (The makedbm man page fully describes this command.)

Using makedbm to Modify a Non-Default Map

There are two different methods for using makedbm to modify maps if you do not have an input file:

• Redirect the makedbm -u output to a temporary file, modify the file, then use the modified file as input to makedbm.

• Have the output of makedbm -u operated on within a pipeline that feeds into makedbm. This is appropriate if you can update the disassembled map with either awk, sed, or a cat append.