1DBCOLNEATEN(1) User Contributed Perl Documentation DBCOLNEATEN(1)
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6 dbcolneaten - pretty-print columns of Fsdb data (assuming a monospaced
7 font)
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10 dbcolneaten [-E] [field_settings]
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13 dbcolneaten arranges that the Fsdb data appears in neat columns if you
14 view it with a monospaced font. To do this, it pads out each field
15 with spaces to line up the next field.
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17 Field settings are of the form
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19 field op value
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21 OP is >=, =, or <= specifying that the width of that FIELD must be
22 more, equal, or less than that VALUE
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24 dbcolneaten runs in O(1) memory but disk space proportional to the size
25 of data.
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28 -E or --noeoln
29 Omit padding for the last column (at the end-of-the-line).
30 (Default behavior.)
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32 -e or --eoln
33 Do padding and include an extra field separator after the last
34 column. (Useful if you're interactively adding a column.)
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36 This module also supports the standard fsdb options:
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38 -d Enable debugging output.
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40 -i or --input InputSource
41 Read from InputSource, typically a file name, or "-" for standard
42 input, or (if in Perl) a IO::Handle, Fsdb::IO or Fsdb::BoundedQueue
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45 -o or --output OutputDestination
46 Write to OutputDestination, typically a file name, or "-" for
47 standard output, or (if in Perl) a IO::Handle, Fsdb::IO or
48 Fsdb::BoundedQueue objects.
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50 --autorun or --noautorun
51 By default, programs process automatically, but Fsdb::Filter
52 objects in Perl do not run until you invoke the run() method. The
53 "--(no)autorun" option controls that behavior within Perl.
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55 --help
56 Show help.
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58 --man
59 Show full manual.
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62 Input:
63 #fsdb fullname homedir uid gid
64 Mr._John_Heidemann_Junior /home/johnh 2274 134
65 Greg_Johnson /home/greg 2275 134
66 Root /root 0 0
67 # this is a simple database
68 # | dbcol fullname homedir uid gid
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70 Command:
71 dbcolneaten
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73 Output:
74 #fsdb -F s fullname homedir uid gid
75 Mr._John_Heidemann_Junior /home/johnh 2274 134
76 Greg_Johnson /home/greg 2275 134
77 Root /root 0 0
78 # this is a simple database
79 # | dbcol fullname homedir uid gid
80 # | dbcolneaten
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83 Does not handle tab separators correctly.
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86 Fsdb.
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89 Copyright (C) 1991-2018 by John Heidemann <johnh@isi.edu>
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91 This program is distributed under terms of the GNU general public
92 license, version 2. See the file COPYING with the distribution for
93 details.
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97perl v5.30.0 2019-09-19 DBCOLNEATEN(1)