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Full Discussion: Script for identifying and deleting dupes in a line
Top Forums Shell Programming and Scripting Script for identifying and deleting dupes in a line Post 302608282 by ardibehest on Friday 16th of March 2012 07:09:30 PM
Old 03-16-2012
Hello,
I wonder if it would be possible to add to Gimley's program. I had written a perl script to identify duplicates in a large file which has a structure similar to Gimley's.
Quote:
word=word1,word2,word3
where Word is the headword and word1, word2, word3 are all equivalents of the word.
It so happens that some times two entries for the same headword can be present.
Quote:
word=word1,word2,word3
word=word1,word4,word5
I have written a program in PERL which identifies such dupes and spews them out in a file where singletons and dupes are clearly identified.
However I have not been able to add to it the added functionality of merging the duplicates into one single entry.
Thus the dupes mentioned above should merge to one single entry:
Quote:
word=word1,word2,word3,word4,word5
Any help given would be greatly appreciated.

Code:
#!/usr/bin/perl

$dupes = $singletons = "";		# This goes at the head of the file

do {
    $dupefound = 0;			# These go at the head of the loop
    $text = $line = $prevline = $name = $prevname = "";
    do {
	$line = <>;
	$line =~ /^(.+)\=.+$/ and $name = $1;
	$prevline =~ /^(.+)\=.+$/ and $prevname = $1;
	if ($name eq $prevname) { $dupefound += 1 }
	$text .= $line;
	$prevline = $line;
    } until ($dupefound > 0 and $text !~ /^(.+?)\=.*?\n(?:\1=.*?\n)+\z/m) or eof;
    if ($text =~ s/(^(.+?)\=.*?\n(?:\2=.*?\n)+)//m) { $dupes .= $1 }
    $singletons .= $text;
} until eof;
print "SINGLETONS\n$singletons\n\DUPES\n$dupes";

 

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LEARN ABOUT DEBIAN

pydhcplib.strlist

pydhcplib.strlist(3)						     PYDHCPLIB						      pydhcplib.strlist(3)

NAME

       pydhcplib.strlist - Internal type of pydhcplib for lists of bytes processing.

SYNOPSIS

       from pydhcplib.type_hw_addr import hwmac

       a = strlist()
       a = strlist([100,100,10,42,44,26])

DESCRIPTION

       The  class  pydhcplib.strlist  is  an specific type of pydhcplib. It exist in order to simplify processing of raw data from network. When a
       dhcp packet dhcp is received, it's a succession of approximately 300 bytes. Within pydhcplib these data are transformed in an  intermediary
       form  of  type "strlist" in order to facilitate their handling. This intermediary form will eventually be suppressed in the stable versions
       of pydhcplib to speedup the processing time, but backward compatibility will be assured.

       The pydhcplib.strlist class creation argument can be a list of numbers whose value goes from 0?55.

       The pydhcplib.strlist class creation argument can be a string of ASCII character.

METHODS

       The implemented methods in this type are mostly comparison methods (= =, >, etc...)

       else :

       str() convert the address into a printable string type.

       list() convert the address into a list of bytes.

EXAMPLES

       Example program strlist_example.py :

       from pydhcplib.type_strlist import strlist

       word = strlist()
       word1 = strlist("azerty")
       word2 = strlist("qwerty")
       word3 = strlist([97, 122, 101, 114, 116, 121])

       print "a0 : ",word
       print "a1 : ",word1
       print "a2 : ",word2
       print "a3 : ",word3

       if word1 == word2 :
	    print "test 1 : ",word1, "==",word2
       else :
	    print "test 1 : " ,word1, "!=",word2

       if word1 == word3 :
	    print "test 2 : ", word1, "==",word3
       else :
	    print "test 2 : ", word1, "!=",word3

SEE ALSO

       pydhcp(8),  pydhcplib.hwmac(3),	pydhcplib.ipv4(3),  pydhcplib.strlist(3),  pydhcplib.DhcpPacket(3),  pydhcplib.DhcpBasicPacket(3),  pydhc-
       plib.DhcpNetwork(3), pydhcplib.DhcpClient(3), pydhcplib.DhcpRawClient(3), pydhcplib.DhcpDerver(3)

BUGS

       See http://pydhcplib.tuxfamily.org/ for more information.

AUTHOR

       Mathieu Ignacio (mignacio[AT]april.org)

															      pydhcplib.strlist(3)
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