dbrowenumerate - enumerate rows, starting from zero

NOTE: this page was directly converted from the perl FSDB manual pages from FSDB version 3.1

SYNOPSIS

dbrowenumerate

DESCRIPTION

Add a new column ``count’’, incremented for each row of data, starting with zero. Use dbrowaccumulate for control over initial value or increment; this module is just a wrapper around that.

OPTIONS

-N or –new-name N

Name the new column N. Defaults to count.

This module also supports the standard jdb options:

-d

Enable debugging output.

-i or –input InputSource

Read from InputSource, typically a file name, or - for standard input, or (if in Perl) a IO::Handle, Fsdb::IO or Fsdb::BoundedQueue objects.

-o or –output OutputDestination

Write to OutputDestination, typically a file name, or - for standard output, or (if in Perl) a IO::Handle, Fsdb::IO or Fsdb::BoundedQueue objects.

–autorun or –noautorun

By default, programs process automatically, but Fsdb::Filter objects in Perl do not run until you invoke the run() method. The --(no)autorun option controls that behavior within Perl.

--help

Show help.

--man

Show full manual.

SAMPLE USAGE

Input:

#h account passwd uid gid fullname homedir shell johnh * 2274 134 John_Heidemann /home/johnh /bin/bash greg * 2275 134 Greg_Johnson /home/greg /bin/bash root * 0 0 Root /root /bin/bash # this is a simple database

Command:

cat DATA/passwd.jdb | dbrowenumerate

Output:

#h account passwd uid gid fullname homedir shell count johnh * 2274 134 John_Heidemann /home/johnh /bin/bash 0 greg * 2275 134 Greg_Johnson /home/greg /bin/bash 1 root * 0 0 Root /root /bin/bash 2 # this is a simple database # | /home/johnh/BIN/DB/dbrowenumerate

SEE ALSO

Fsdb, dbrowaccumulate.

CLASS FUNCTIONS