In Unix, how do I delete lines in a file that match a particular pattern without opening it. File contents are
foo line1
misc
whatever
foo line 2
i want to delete all lines that have the pattern "foo" without opening the file. File should eventually contain
misc
whatever (1 Reply)
I am using Solaris, I want to print
3 lines before pattern match
pattern
5 lines after pattern match
Pattern is abcd to be searched in a.txt. Looking for the solution in sed/awk/perl. Thanks ..
Input File a.txt:
=================
1
2
3
abcd
4
5
6
7
8 (7 Replies)
Hi,
I need help with this-
input.txt :
L B white
X Y white
A B brown
M Y black
Read this input file and if 3rd column is "white", then add specific lines to another file insert.txt.
If 3rd column is brown, add different set of lines to insert.txt, and so on.
For example, the given... (6 Replies)
Hello Experts , require help . See below output:
File inputs
------------------------------------------
Server Host = mike
id rl images allocated last updated density
vimages expiration last read <------- STATUS ------->... (4 Replies)
GM,
I have an issue at work, which requires a simple solution. But, after multiple attempts, I have not been able to hit on the code needed.
I am assuming that sed, awk or even perl could do what I need.
I have an application that adds extra blank page feeds, for multiple reports, when... (7 Replies)
I have a file with class c IP addresses that I need to match to a column and print the matching lines of another file.
I started playing with grep -if file01.out file02.out but I am stuck as to how to match it to a column and print the matching lines;
cat file01.out
10.150.140... (5 Replies)
In the below file I am trying to grep or similar, all lines where only AF= is less than 0.4.. Thank you :).
grep
grep "AF=" ,+ .4 file
file
12 112036782 . T C 34.0248 PASS ... (3 Replies)
Hi All ,
I have to write one Perl script in which I need to read one pre-existing xls and based on pattern match for one word in some cells of the XLS , I need to fill the entire row with one color of that matched cell and write the content to another excel
Please find the below stated... (2 Replies)
Discussion started by: kshitij
2 Replies
LEARN ABOUT CENTOS
ppi::statement::include
PPI::Statement::Include(3) User Contributed Perl Documentation PPI::Statement::Include(3)NAME
PPI::Statement::Include - Statements that include other code
SYNOPSIS
# The following are all includes
use 5.006;
use strict;
use My::Module;
use constant FOO => 'Foo';
require Foo::Bar;
require "Foo/Bar.pm";
require $foo if 1;
no strict 'refs';
INHERITANCE
PPI::Statement::Include
isa PPI::Statement
isa PPI::Node
isa PPI::Element
DESCRIPTION
Despite its name, the "PPI::Statement::Include" class covers a number of different types of statement that cover all statements starting
with "use", "no" and "require".
But basically, they cover three situations.
Firstly, a dependency on a particular version of perl (for which the "version" method returns true), a pragma (for which the "pragma"
method returns true, or the loading (and unloading via no) of modules.
METHODS
"PPI::Statement::Include" has a number of methods in addition to the standard PPI::Statement, PPI::Node and PPI::Element methods.
type
The "type" method returns the general type of statement ('use', 'no' or 'require').
Returns the type as a string, or "undef" if the type cannot be detected.
module
The "module" method returns the module name specified in any include statement. This "includes" pragma names, because pragma are
implemented as modules. (And lets face it, the definition of a pragma can be fuzzy at the best of times in any case)
This covers all of these...
use strict;
use My::Module;
no strict;
require My::Module;
...but does not cover any of these...
use 5.006;
require 5.005;
require "explicit/file/name.pl";
Returns the module name as a string, or "undef" if the include does not specify a module name.
module_version
The "module_version" method returns the minimum version of the module required by the statement, if there is one.
pragma
The "pragma" method checks for an include statement's use as a pragma, and returns it if so.
Or at least, it claims to. In practice it's a lot harder to say exactly what is or isn't a pragma, because the definition is fuzzy.
The "intent" of a pragma is to modify the way in which the parser works. This is done though the use of modules that do various types of
internals magic.
For now, PPI assumes that any "module name" that is only a set of lowercase letters (and perhaps numbers, like "use utf8;"). This behaviour
is expected to change, most likely to something that knows the specific names of the various "pragmas".
Returns the name of the pragma, or false ('') if the include is not a pragma.
version
The "version" method checks for an include statement that introduces a dependency on the version of "perl" the code is compatible with.
This covers two specific statements.
use 5.006;
require 5.006;
Currently the version is returned as a string, although in future the version may be returned as a version object. If you want a numeric
representation, use "version_literal()". Returns false if the statement is not a version dependency.
version_literal
The "version_literal" method has the same behavior as "version()", but the version is returned as a numeric literal. Returns false if the
statement is not a version dependency.
The "arguments" method gives you the rest of the statement after the the module/pragma and module version, i.e. the stuff that will be used
to construct what gets passed to the module's "import()" subroutine. This does include the comma, etc. operators, but doesn't include non-
significant direct children or any final semicolon.
TO DO
- Write specific unit tests for this package
SUPPORT
See the support section in the main module.
AUTHOR
Adam Kennedy <adamk@cpan.org>
COPYRIGHT
Copyright 2001 - 2011 Adam Kennedy.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
The full text of the license can be found in the LICENSE file included with this module.
perl v5.16.3 2011-02-26 PPI::Statement::Include(3)