sendmail, 4th Edition

makemap Command-Line Switches

The command-line switches for makemap must precede the dbtype and the outfile:

makemap switches dbtype outfile

Switches are single characters, prefixed with a - character. Switches can also be combined:

-N -o      ← good
-No        ← also good

The complete list of switches is shown in Table 10-6. (See getopt(3) for additional information about the way switches are handled.)

Table 10-6. makemap program’s switches

Switch	§	Description
-c	-c on page 372	Set the cache size for hash and btree.
-C	-C on page 372	Use an alternative sendmail configuration file.
-d	-d on page 372	Allow duplicate keys in database.
-D	-D on page 373	Define alternative to # as comment character (V8.13 and above).
-e	-e on page 373	Allow empty data for keys.
-f	-f on page 374	Don’t fold uppercase to lowercase.
-l	-l (lowercase L) on page 374	List database types supported.
-N	-N on page 374	Append a null byte to all keys.
-o	-o on page 374	Append to, don’t overwrite the file.
-r	-r on page 374	Replace (silently) duplicate keys.
-s	-s on page 375	Skip security checks.
-t	-t on page 375	Specify an alternative to whitespace for a delimiter.
-u	-u on page 376	Unmake (dump) the contents of a database.
-v	-v on page 376	Watch keys and data being added.

In the following sections, we describe each switch in detail.

-c

Set the cache size for hash and btree makemap command-line switch

The -c switch instructs makemap to set the cache size for hash or btree databases ...