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Removing Carriage return to create one record
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makedbm(1M) makedbm(1M) NAME
makedbm - make a Network Information System database SYNOPSIS
nis_input_file] nis_output_name] nis_domain_name] nis_master_name] infile outfile database_name Remarks The Network Information Service (NIS) was formerly known as Yellow Pages (yp). Although the name has changed, the functionality of the service remains the same. DESCRIPTION
generates databases (maps) for the Network Information System (NIS) from infile. A database created by consists of two files: and A data- base contains records called dbm records composed of key-value pairs. Each line of infile is converted to a single dbm record; all characters up to the first tab or space form the key, and the remainder of the line is the value. If a value read from infile ends with the value for that record is continued onto the next line. The NIS clients must interpret the character (which means that does not treat the as if it precedes a comment). If infile is a hyphen reads standard input. always generates a special dbm record with the key whose value is the time of last modification of infile (or the current time, if infile is This value is also known as the order number of a map, and prints it for a specified NIS map (see yppoll(1M)). Another special dbm record created by has the key Its value is usually the host name retrieved by however, the option can be used to spec- ify a different value (see gethostname(2)). If the option is used, another special dbm record with the key is created. When this key exists in the NIS host.by* maps or ipnodes.by* maps and the NIS host name resolution fails, the process will query the Internet domain name server, to provide the host name resolution. Before using the option, it is recommended that the name services switch, be set to allow NIS host name resolution first. (Note that, since the process only checks hosts.by* and ipnodes.by* for the existence of the key, using the option on any other NIS map will have no effect. Also, the option should be used on both the *.byname and *.byaddr maps, not one exclusively.) If the option is used, another special dbm record created is the key. If this key exists in an NIS map, will only allow privileged pro- cesses (applications that can create reserved ports) to access the data within the map. Options recognizes the following options and command-line arguments. Create a special dbm record with the key This key, which is in the hosts.byname, hosts.byaddr, ipnodes.byname, and ipnodes.byaddr maps, allows the process to query the Internet domain name server (see named(1M)). Convert the keys of the given map to lowercase. This command option allows host name matches to work independent of character-case distinctions. Accept connections from secure NIS networks only. Create a special dbm record with the key and the value If the option is used, another special dbm record created is the key. If this key exists in an NIS map, will only allow privileged processes to access the data within the map (that is, applications that can create reserved ports). Create a special dbm record with the key and the value nis_output_name. Create a special dbm record with the key and the value nis_domain_name. Replace the value of the special dbm record whose key is with nis_master_name. Undo the database_name (that is, write the contents of database_name to the standard output) one dbm record per line. A single space sepa- rates each key from its value. EXAMPLES
Shell scripts can be written to convert ASCII files such as to the key-value form used by For example, #!/usr/bin/sh /usr/bin/awk 'BEGIN { FS = ":" } { print $1, $0 }' /etc/netgroup | makedbm - netgroup converts the file to a form that is read by to make the NIS map The keys in the database are names, and the values are the remainders of the lines in the file. AUTHOR
was developed by Sun Microsystems, Inc. SEE ALSO
domainname(1), named(1M), ypinit(1M), ypmake(1M), yppoll(1M), gethostname(2), netgroup(4), ypfiles(4). makedbm(1M)
