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MAKEMAP(8)
NAME
  makemap - create database maps for sendmail

SYNOPSIS
  makemap [-C file] [-N] [-c cachesize] [-d] [-e] [-f] [-l] [-o] [-r] [-s]
  [-t delim] [-u] [-v] maptype mapnam

DESCRIPTION
  Makemap 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.

  Depending on how it is compiled, makemap handles up to three different
  database formats, selected using the maptype parameter. They may be

  dbm  DBM format maps. This requires the ndbm(3) library.

  btree
       B-Tree format maps. This requires the new Berkeley DB library.

  hash Hash format maps. This also requires the Berkeley 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 indicate parameter
  substitution. Literal percents should be doubled (``%%'').  Blank lines and
  lines beginning with ``#'' are ignored.

  Notice: do not use makemap to create the aliases data base, but newaliases
  which puts a special token into the data base that is required by sendmail.

  If the TrustedUser option is set in the sendmail configuration file and
  makemap is invoked as root, the generated files will be owned by the
  specified TrustedUser.

  Flags

  -C   Use the specified sendmail configuration file for looking up the
       TrustedUser option.

  -N   Include the null byte that terminates strings in the map. This must
       match the -N flag in the sendmail.cf ``K'' line.

  -c   Use the specified hash and B-Tree cache size.

  -d   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.

  -e   Allow empty value (right hand side).

  -f   Normally all upper case letters in the key are folded to lower case.
       This flag disables that behaviour. This is intended to mesh with the
       -f flag in the K line in sendmail.cf. The value is never case folded.

  -l   List supported map types.

  -o   Append to an old file. This allows you to augment an existing file.

  -r   Allow replacement of existing keys. Normally makemap complains if you
       repeat a key, and does not do the insert.

  -s   Ignore safety checks on maps being created. This includes checking for
       hard or symbolic links in world writable directories.

  -t   Use the specified delimiter instead of white space.

  -u   dump (unmap) the content of the database to standard output.

  -v   Verbosely print what it is doing.

SEE ALSO
  sendmail(8), newaliases(1)

HISTORY
  The makemap command appeared in 4.4BSD.

Index for Section 8

Alphabetical listing for M

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