makemap(8) System Manager's Manual makemap(8)
NAME
makemap - Create database maps for sendmail
SYNOPSIS
/usr/sbin/makemap [-N] [-d] [-f] [-o] [-r] [-v] maptype mapname
OPTIONS
Include the null byte that terminates strings in the map. This must match the -N option in the sendmail.cf K line. Allow duplicate keys
in the map. This is only allowed on B-Tree format maps. If two identical keys are read, they will both be inserted into the map. Nor-
mally all uppercase letters in the key are folded to lower case. This option disables that behavior. This is intended to mesh with the -f
option in the K line in sendmail.cf. The value is never case folded. Append to an old file. This allows you to augment an existing file.
Allow replacement of existing keys. Normally makemap complains if you repeat a key, and does not do the insert. Verbosely print what it
is doing.
DESCRIPTION
The makemap command creates the database maps used by the keyed map lookups in sendmail(8). It reads input from the standard input and
outputs them to the indicated mapname.
The makemap command handles three different database formats, selected using the maptype operand. They may be: DBM format maps. This
requires the ndbm library. See ndbm(3). B-Tree format maps. This requires the new Berkeley db library. Hash format maps. This also
requires the db library.
In all cases, makemap reads lines from the standard input consisting of two words separated by white space. The first is the database key,
the second is the value. The value may contain %n strings to indicated parameter substitution. Literal percents should be doubled (%%).
Blank lines and lines beginning with the pound sign (#) are ignored.
SEE ALSO
Commands: sendmail(8)
Functions: ndbm(8)
makemap(8)
