httxt2dbm is used to generate dbm files from text input, for
use in RewriteMap with the dbm map type.
httxt2dbm
[ -v ]
[ -f DBM_TYPE ]
-i SOURCE_TXT
-o OUTPUT_DBM
-v-fGDBM for GDBM filesSDBM for SDBM filesDB for berkeley DB filesNDBM for NDBM files-ikey value-o