dbcolrename - change the names of columns in a fsdb schema

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

SYNOPSIS

dbcolrename OldName1 NewName1 [OldName2 NewName2] …

DESCRIPTION

Dbcolrename changes the names of columns in a fsdb schema, mapping OldName1 to NewName1, and so on for multiple pairs of column names.

Note that it is valid to do overlapping renames like dbcolrename a b b a.

OPTIONS

No non-standard options.

This module also supports the standard fsdb 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:

#fsdb 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.fsdb | dbcolrename fullname first_last

Output:

#fsdb account passwd uid gid first_last 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 # | dbcolrename fullname first_last

SEE ALSO

Fsdb.