MAKEDBM(8) Maintenance Commands and Procedures MAKEDBM(8)

NAME

makedbm - make a dbm file, or get a text file from a dbm file

SYNOPSIS

makedbm [-b] [-l] [-s] [-E] [-i yp_input_file]
[-o yp_output_name] [-d yp_domain_name]
[-m yp_master_name] [-S delimiter]
[-D number_of_delimiters] infile outfile


makedbm [-u dbmfilename]

DESCRIPTION

The makedbm utility takes the infile and converts it to a pair of files
in ndbm format (see ndbm(3C)), 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, and the rest of the
line is the data. If a line ends with `\' (backslash), the data for that
record is continued on to the next line. makedbm does not treat `#'
(pound-sign) as a special character.


Because makedbm is mainly used in generating dbm files for the NIS name
service, it generates a special entry with the key yp_last_modified,
which is the date of infile (or the current time, if infile is `-'). The
entries that have keys with the prefix yp_ are interpreted by NIS server
utilities.

OPTIONS

The following options are supported:

-b
Insert the YP_INTERDOMAIN into the output.
This key causes ypserv(8) to use DNS for host
name and address lookups for hosts not found
in the maps.


-d yp_domain_name
Create a special entry with the key
yp_domain_name.


-D number_of delimiters
Specify number_of_delimiters to skip before
forming the key.


-E
Delimiters are escaped.


-i yp_input_file
Create a special entry with the key
yp_input_file.


-l
Lower case. Convert the keys of the given map
to lower case, so that, for example, host name
matches succeed independent of upper or lower
case distinctions.


-m yp_master_name
Create a special entry with the key
yp_master_name. If no master host name is
specified, yp_master_name is set to the local
host name.


-o yp_output_name
Create a special entry with the key
yp_output_name.


-s
Secure map. Accept connections from secure
NIS networks only.


-S delimiter
Specify the delimiter to use instead of the
default delimiter for forming the key.


-u dbmfilename
Undo a dbm file. Prints out the file in text
format, one entry per line, with a single
space separating keys from values.

OPERANDS

The following operands are supported:

infile
Input file for makedbm. If infile is `-' (dash), the standard
input is read.


outfile
One of two output files in ndbm format: outfile.pag and
outfile.dir.

SEE ALSO

ndbm(3C), attributes(7), ypserv(8)

August 17, 1999 MAKEDBM(8)