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makemap - create database maps for sendmail



        makemap - create database maps for sendmail


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


        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.
        -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 ‘‘K’’ line.
        -c     Use the specified hash and B-Tree cache size.
        -D     Use to specify the character to use to indicate a comment (which
               is ignored) instead of the default of ’#’.
        -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  The value
               is never case folded.
        -l     List supported map types.
        -o     Append to an old file.  This allows you to augment  an  existing
        -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 directo‐
        -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.
        sendmail(8), newaliases(1)


        The makemap command appeared in 4.4BSD.
                          $Date: 2002/06/27 23:41:04 $               MAKEMAP(8)


Based on BSD UNIX
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