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Full Discussion: Removing dupes within 2 delimited areas in a large dictionary file
Top Forums Shell Programming and Scripting Removing dupes within 2 delimited areas in a large dictionary file Post 302740215 by gimley on Wednesday 5th of December 2012 08:17:21 PM
Old 12-05-2012
Removing dupes within 2 delimited areas in a large dictionary file
Hello,
I have a very large dictionary file which is in text format and which contains a large number of sub-sections. Each sub-section starts with the following header :
Code:
#DATA
#VALID 1[this could be also be 0 instead of 1]

and ends with a footer as shown below
Code:
#END

The data between the Header and the Footer consists of words, each word on a separate line.
However given the large data, it so happens that within a section, words are repeated, as a result of which the file ends up with dupes.
What I need is a PERL or AWK script which could identify the header and the footer, find the data within them and sort the data removing all duplicates.
A sample input and output are given below. The examples are from English since the real time data is in Perso-Arabic script. Case is not an issue since the language does not have case. All data is in Unicode :UTF16 but I can convert it to Unicode 8
Could it be possible to please comment the script so that I can learn how to identify Headers and Footeers with a database and then sort them removing dupes.
Many thanks in advance for help and also the learning experience

_____Sample Input
Code:
#DATA
#VALID 1
a
a
a
a
all
an
and
and
and
are
are
are
as
awk
below
case
case
could
data
data
data
data
does
dupes
duplicates
ends
english
examples
file
find
footer
from
given
given
happens
have
header
however
i
identify
in
input
is
is
is
issue
it
language
large
need
not
not
of
or
output
perl
perso-arabic
real
removing
repeated
result
sample
script
script
section
since
since
so
sort
that
the
the
the
the
the
the
the
the
the
them
time
up
what
which
which
with
within
within
words
#END

___________Expected output
Code:
#DATA
#VALID 1
a
all
an
and
are
as
awk
below
case
could
data
does
dupes
duplicates
ends
english
examples
file
find
footer
from
given
happens
have
header
however
i
identify
in
input
is
issue
it
language
large
need
not
of
or
output
perl
perso-arabic
real
removing
repeated
result
sample
script
section
since
so
sort
that
the
them
time
up
what
which
with
within
words
#END

_____Sample ends
Last edited by Scrutinizer; 12-07-2012 at 04:03 AM.. Reason: code tags
 

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LEARN ABOUT SUSE

create_text_search_dictionary

CREATE TEXT SEARCH 
DICTIONARY(7)				   SQL Commands 				  CREATE TEXT SEARCH DICTIONARY(7)

NAME

       CREATE TEXT SEARCH DICTIONARY - define a new text search dictionary

SYNOPSIS

       CREATE TEXT SEARCH DICTIONARY name (
	   TEMPLATE = template
	   [, option = value [, ... ]]
       )

DESCRIPTION

       CREATE  TEXT SEARCH DICTIONARY creates a new text search dictionary. A text search dictionary specifies a way of recognizing interesting or
       uninteresting words for searching. A dictionary depends on a text search template, which specifies the functions that actually perform  the
       work. Typically the dictionary provides some options that control the detailed behavior of the template's functions.

       If  a  schema  name  is	given  then  the text search dictionary is created in the specified schema. Otherwise it is created in the current
       schema.

       The user who defines a text search dictionary becomes its owner.

       Refer to in the documentation for further information.

PARAMETERS

       name   The name of the text search dictionary to be created. The name can be schema-qualified.

       template
	      The name of the text search template that will define the basic behavior of this dictionary.

       option The name of a template-specific option to be set for this dictionary.

       value  The value to use for a template-specific option. If the value is not a simple identifier or number, it must be quoted (but  you  can
	      always quote it, if you wish).

       The options can appear in any order.

EXAMPLES

       The following example command creates a Snowball-based dictionary with a nonstandard list of stop words.

       CREATE TEXT SEARCH DICTIONARY my_russian (
	   template = snowball,
	   language = russian,
	   stopwords = myrussian
       );

COMPATIBILITY

       There is no CREATE TEXT SEARCH DICTIONARY statement in the SQL standard.

SEE ALSO

       ALTER TEXT SEARCH DICTIONARY [alter_text_search_dictionary(7)], DROP TEXT SEARCH DICTIONARY [drop_text_search_dictionary(7)]

SQL - Language Statements					    2010-05-14					  CREATE TEXT SEARCH DICTIONARY(7)
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