1DBCOLRENAME(1) User Contributed Perl Documentation DBCOLRENAME(1)
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6 dbcolrename - change the names of columns in a fsdb schema
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9 dbcolrename OldName1 NewName1 [OldName2 NewName2] ...
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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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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
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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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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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66 Fsdb.
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69 Copyright (C) 1991-2018 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 v5.32.0 2020-11-16 DBCOLRENAME(1)