Dbcolcreate (1) Linux Manual Page

NAME

dbcolcreate – create new columns

    dbcolcreate NewColumn1 [NewColumn2]

    dbcolcreate -e DefaultValue NewColumnWithDefault

Create columns "NewColumn1", etc. with an optional "DefaultValue".

-e EmptyValue or –empty: Specify the value newly created columns get.
-f or –first: Put all new columns as the first columns of each row. By default, they go at the end of each row.
–no-recreate-fatal: By default, creating an existing column is an error. With –no-recreate-fatal, we ignore re-creation.

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.

    #fsdb test
    a
    b

    cat data.fsdb | dbcolcreate foo

    #fsdb      test    foo
    a       -
    b       -

This program is distributed under terms of the GNU general public license, version 2. See the file COPYING with the distribution for details.