07-20-2009
Of course, but why? What's the problem with Perl?
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I am doing KSH script to remove duplicate lines in a file. Let say the file has format below.
FileA
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I have a log file "logreport" that contains several lines as seen below:
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3. Shell Programming and Scripting
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OK, I have read several things on how to do this, but can't make it work. I am writing this to a vi file then calling it as an awk script.
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Hi All,
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
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greetings,
i'm hoping there is a way to cat a file, remove duplicate lines and send that output to a new file. the file will always vary but be something similar to this:
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7. Shell Programming and Scripting
Hey guys, need some help to fix this script. I am trying to remove all the duplicate lines in this file.
I wrote the following script, but does not work. What is the problem?
The output file should only contain five lines:
Later! (5 Replies)
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hi,
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Hi,
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Hi, all
I have a csv file that I would like to remove duplicate lines based on 1st field and sort them by the 1st field. If there are more than 1 line which is same on the 1st field, I want to keep the first line of them and remove the rest. I think I have to use uniq or something, but I still... (8 Replies)
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LEARN ABOUT CENTOS
perl::critic::policy::objects::prohibitindirectsyntax
Perl::Critic::Policy::Objects::ProhibitIndirectSyntax(3)User Contributed Perl DocumentatioPerl::Critic::Policy::Objects::ProhibitIndirectSyntax(3)
NAME
Perl::Critic::Policy::Objects::ProhibitIndirectSyntax - Prohibit indirect object call syntax.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Indirect object syntax is commonly used in other object-oriented languages for instantiating objects. Perl allows this, but to say that it
supports it may be going too far. Instead of writing
my $foo = new Foo;
it is preferable to write
my $foo = Foo->new;
The problem is that Perl needs to make a number of assumptions at compile time to disambiguate the first form, so it tends to be fragile
and to produce hard-to-track-down bugs.
CONFIGURATION
Indirect object syntax is also hard for Perl::Critic to disambiguate, so this policy only checks certain subroutine calls. The names of the
subroutines can be configured using the "forbid" configuration option:
[Objects::ProhibitIndirectSyntax]
forbid = create destroy
The "new" subroutine is configured by default; any additional "forbid" values are in addition to "new".
CAVEATS
The general situation can not be handled via static analysis.
SEE ALSO
Perl::Critic::Policy::Dynamic::NoIndirect and indirect both do a better job with this, but they require that you compile/execute your code.
AUTHOR
Thomas R. Wyant, III wyant at cpan dot org
COPYRIGHT
Copyright (c) 2009-2011 Tom Wyant.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license
can be found in the LICENSE file included with this module.
perl v5.16.3 2014-06-09 Perl::Critic::Policy::Objects::ProhibitIndirectSyntax(3)