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1. UNIX for Beginners Questions & Answers
Hi All ,
I am having an input file like this
Input file
7 sks/jsjssj/ddjd/hjdjd/hdhd/Q 10 0.5 13
dkdkd/djdjd/djdjd/djd/QB 01 0.5
ldld/dkd/jdf/fjfjf/fjf/Q 0.5
10 sjs/jsdd/djdkd/dhd/Q 01 0.5 21
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dkdld/djdjd/djd/Q 01 0.5
... (9 Replies)
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2. Shell Programming and Scripting
Hi,
i need to sort content of files based on a specific value. An example as below.
Input1.txt
Col_1
SW_MH2_ST
ST_F72_9S
SW_MH3_S6
Col_2
SW_MH3_AS7
ST_S15_9CH
SW_MH3_AS8
SW_MH3_ST
Col_3
ST_M93_SZ
ST_C16_TC (12 Replies)
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I have a file which has the following data :-
how can I sort the data in descending order .
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Thanks (2 Replies)
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4. Shell Programming and Scripting
Hi,
I am having trouble sorting one file based on another file. I tried the grep -f function and failed. Basically what I have is two files that look like this:
File 1 (the list)
gh
aba
for
hmm
File 2 ( the file that needs to be sorted)
aba 2 4 6 7
for 2 4 7 4... (4 Replies)
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Hi All,
When i give ls -ltr my filenames looks like this:
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Jun 05 04:30 Abc_Def_060520111245.csv
Jun 05 08:40 Abc_Def_071220121458.csv
Jun 06 03:30 Abc_Def_071220111458.csv
Jun 06 04:25 Abc_Def_060620110439.csv
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Hi Everyone,
# cat 1.pl
#!/usr/bin/perl
use strict;
use warnings;
my @test=("a","b","c","d");
print @test;
# ./1.pl
abcd
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7. Shell Programming and Scripting
Hi,
My input file is
$cat samp
1 siva
1 raja
2 siva
1 siva
2 raja
4 venkat
i want sort this name wise...alos need to remove duplicate lines.
i am using
cat samp|awk '{print $2,$1}'|sort -u
it showing
raja 1 (3 Replies)
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8. Shell Programming and Scripting
Hi,
Is there any way to sort a file in cshell by sort command, sorting it by multiple fields, like to sort it first by the second column and then by the first column.
Thanks forhead (1 Reply)
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I'm not familiar with find.
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fol1/subfol1
fol1/subfol1/subfol1
fol2
fol2/subfol2
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fol1/subfol1
fol1
fol2/subfol2
fol2
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XML::Filter::Sort::BufferMgr(3pm) User Contributed Perl Documentation XML::Filter::Sort::BufferMgr(3pm)
NAME
XML::Filter::Sort::BufferMgr - Implementation class used by XML::Filter::Sort
DESCRIPTION
The documentation is targetted at developers wishing to extend or replace this class. For user documentation, see XML::Filter::Sort.
Two classes are used to implement buffering records and spooling them back out in sorted order as SAX events. One instance of the
XML::Filter::Sort::Buffer class is used to buffer each record and one or more instances of the XML::Filter::Sort::BufferMgr class are used
to manage the buffers.
API METHODS
The API of this module as used by XML::Filter::Sort::Buffer consists of the following sequence of method calls:
1. When the first 'record' in a sequence is encountered, XML::Filter::Sort creates a XML::Filter::Sort::BufferMgr object using the "new()"
method.
2. XML::Filter::Sort calls the buffer manager's "new_buffer()" method to get a XML::Filter::Sort::Buffer object and all SAX events are
directed to this object until the end of the record is encountered. The following events are supported by the current buffer
implementation:
start_element()
characters()
comment()
processing_instruction()
end_element()
3. When the end of the record is detected, XML::Filter::Sort calls the buffer manager's "close_buffer()" method, which in turn calls the
buffer's "close()" method. The "close()" method returns a list of values for the sort keys and the buffer manager uses these to store
the buffer for later recall. Subsequent records are handled as per step 2.
4. When the last record has been buffered, XML::Filter::Sort calls the buffer manager's "to_sax()" method. The buffer manager retrieves
each of the buffers in sorted order and calls the buffer's "to_sax()" method.
Each buffer attempts to match the sort key paths as SAX events are received. Once a value has been found for a given key, that same path
match is not attempted against subsequent events. For efficiency, the code to match each key is compiled into a closure. For even more
efficiency, this compilation is done once when the XML::Filter::Sort object is created. The "compile_matches()" method in the buffer
manager class calls the "compile_matches()" method in the buffer class to achieve this.
DATA STRUCTURES
In the current implementation, the XML::Filter::Sort::BufferMgr class simply uses a hash to store the buffer objects. If only one sort key
was defined, only a single hash is required. The values in the hash are arrayrefs containing the list of buffers for records with
identical keys.
If two or more sort keys are defined, the hash values will be XML::Filter::Sort::BufferMgr objects which in turn will contain the buffers.
The following illustration may clarify the relationship (BM=buffer manager, B=buffer):
BM
+----------------+---------------+
| |
BM BM
+-----+--------+ +-----+----------+
| | | |
BM BM BM BM
+-----+----+ +----+------+ +----+----+ +------+------+
| | | | | | | | | | | |
[B,B,B] [B] [B,B] [B] [B,B] [B,B,B] [B] [B,B] [B] [B,B] [B,B,B] [B,B]
This layered storage structure is transparent to the XML::Filter::Sort object which instantiates and interacts with only one buffer manager
(the one at the top of the tree).
COPYRIGHT
Copyright 2002 Grant McLean <grantm@cpan.org>
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.12.4 2002-06-14 XML::Filter::Sort::BufferMgr(3pm)