MAKEDBM(1M-SysV) RISC/os Reference Manual MAKEDBM(1M-SysV)
NAME
makedbm - make a dbm file
SYNOPSIS
makedbm [ -i yp_input_file ] [ -o yp_output_name ]
[ -d yp_domain_name ] [ -m yp_master_name ]
infile outfile makedbm [ -u dbmfilename ]
DESCRIPTION
makedbm takes infile and converts it to a pair of files in
dbm 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, and
the rest of the line is the data. If a line ends with \,
then the data for that record is continued on to the next
line. Infile can be -, in which case standard input is
read.
makedbm is meant to be used in generating dbm files and it
generates a special entry with the key yp_last_modified,
which is the date of infile (or the current time, if infile
is -).
OPTIONS
-i Create a special entry with the key
yp_input_file.
-o Create a special entry with the key
yp_output_name.
-d Create a special entry with the key
yp_domain_name.
-m Create a special entry with the key
yp_master_name. If no master host name
is specified, yp_master_name will be set
to the local host name.
-u Undo a dbm file. That is, print out a
dbm file one entry per line, with a sin-
gle space separating keys from values.
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,
#!/bin/awk -f
BEGIN { FS = ":"; OFS = "\t"; }
{ print $1, $0 }
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MAKEDBM(1M-SysV) RISC/os Reference Manual MAKEDBM(1M-SysV)
takes the /etc/passwd file and converts it to a form that
can be read by makedbm to make the file passwd.byname. That
is, the key is a username, and the value is the remaining
line in the /etc/passwd file.
ORIGIN
Sun Microsystems
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