1DBCOLRENAME(1)        User Contributed Perl Documentation       DBCOLRENAME(1)
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NAME

6       dbcolrename - change the names of columns in a fsdb schema
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SYNOPSIS

9       dbcolrename OldName1 NewName1 [OldName2 NewName2] ...
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DESCRIPTION

12       Dbcolrename changes the names of columns in a fsdb schema, mapping
13       OldName1 to NewName1, and so on for multiple pairs of column names.
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15       Note that it is valid to do "overlapping" renames like "dbcolrename a b
16       b a".
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OPTIONS

19       No non-standard options.
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21       This module also supports the standard fsdb options:
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23       -d  Enable debugging output.
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25       -i or --input InputSource
26           Read from InputSource, typically a file name, or "-" for standard
27           input, or (if in Perl) a IO::Handle, Fsdb::IO or Fsdb::BoundedQueue
28           objects.
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30       -o or --output OutputDestination
31           Write to OutputDestination, typically a file name, or "-" for
32           standard output, or (if in Perl) a IO::Handle, Fsdb::IO or
33           Fsdb::BoundedQueue objects.
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35       --autorun or --noautorun
36           By default, programs process automatically, but Fsdb::Filter
37           objects in Perl do not run until you invoke the run() method.  The
38           "--(no)autorun" option controls that behavior within Perl.
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40       --help
41           Show help.
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43       --man
44           Show full manual.
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SAMPLE USAGE

47   Input:
48           #fsdb account passwd uid gid fullname homedir shell
49           johnh * 2274 134 John_Heidemann /home/johnh /bin/bash
50           greg * 2275 134 Greg_Johnson /home/greg /bin/bash
51           root * 0 0 Root /root /bin/bash
52           # this is a simple database
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54   Command:
55           cat DATA/passwd.fsdb | dbcolrename fullname first_last
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57   Output:
58           #fsdb      account passwd  uid     gid     first_last      homedir shell
59           johnh * 2274 134 John_Heidemann /home/johnh /bin/bash
60           greg * 2275 134 Greg_Johnson /home/greg /bin/bash
61           root * 0 0 Root /root /bin/bash
62           # this is a simple database
63           #  | dbcolrename fullname first_last
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SEE ALSO

66       Fsdb.
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69       Copyright (C) 1991-2022 by John Heidemann <johnh@isi.edu>
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71       This program is distributed under terms of the GNU general public
72       license, version 2.  See the file COPYING with the distribution for
73       details.
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77perl v5.38.0                      2023-07-20                    DBCOLRENAME(1)
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