makedbm(NADM)                   19 June 1992                   makedbm(NADM)


 Name

    makedbm - make a Network Information Service (NIS) dbm file


 Syntax

    makedbm [ -b ] [ -l ] [ -s ] [ -i yp_inputfile ] [ -o yp_outputname ] [
    -d yp_domainname ] [ -m yp_mastername ] infile outfile
    makedbm [ -u dbmfilename ]


 Description

    The makedbm command takes infile and converts it to a pair of files in
    ndbm(NS) format, namely outfile.pag and outfile.dir.  Each line of the
    input file is converted to a single dbm record.  All characters up to the
    first <Tab> or <Space> form the key:  the rest of the line is the data.
    If a line ends with ``\'', then the data for that record is continued
    onto the next line.  It is left for the clients of the Network Informa-
    tion Service (NIS) to interpret ``#''; the makedbm command itself does
    not treat ``#'' as a comment character.  infile can be ``-'', in which
    case standard input is read.


    The makedbm command is intended for generating dbm files for the Network
    Information Service (NIS); makedbm generates a special entry with the key
    yp_lastmodified, which is the date of infile (or the current time, if
    infile is ``-'').


 Options


    -b   interdomain.  This option propagates a map to all servers using the
         interdomain name server, named(ADMN).


    -l   lowercase.  This option converts the keys of the given map to lower-
         case, so that host matches, for example, can work independently of
         upper- or lowercase distinctions.


    -s   secure map.  This option accepts connections from secure NIS net-
         works only.


    -i   create a special entry with the key yp_inputfile


    -o   create a special entry with the key yp_outputname


    -d   create a special entry with the key yp_domainname


    -m   create a special entry with the key yp_mastername.  If no master
         host name is specified, yp_mastername will be set to the local host
         name.


    -u   undo a dbm file.  That is, print out a dbm file with one entry per
         line and with a single space separating each key from its value.

 Example

    It is easy to write shell scripts to convert standard files such as
    /etc/passwd to the key value form used by makedbm.  For example, the awk
    program

        BEGIN { FS = ":"; OFS = "\t"; }
        { print $1, $0 }

    takes the /etc/passwd file and converts it to a form that can be read by
    makedbm to make the network information service (NIS) file passwd.byname.
    That is, the key is a username and the value is the remaining line in the
    /etc/passwd file.

 See also

    ndbm(NS), yppasswd(NC)