Hi there,
We have been given a bit of coursework using awk on html pages. Without giving too much away and risking the wrath of the plagerism checks, I can say we need to deal with certain html elements.
There may be several of these elements on one line. My question is, if there are more... (1 Reply)
I want to print between the range two patterns if a particular pattern is present in between the two patterns. I am new to Unix. Any help would be greatly appreciated.
e.g.
Pattern1
Bombay
Calcutta
Delhi
Pattern2
Pattern1
Patna
Madras
Gwalior
Delhi
Pattern2
Pattern1... (2 Replies)
Hi All,
I would like to assign the following values to each column in my file.
if $i is between 1 and -1 (ie -1 < $i < 1) then print A;
if $i is between -2 and -1 && 1 and 2 (ie. -2 < $i < -1 && 1 < $i < 2) then print B;
if $i is between -3 and -2 && 2 and 3 (ie. -3 < $i < -2 && 2 < $i < 3)... (1 Reply)
Hi,
I am using sub to remove blank spaces and one pattern(=>) from the input string. It works fine when I am using two sub functions for the same. However it is giving error while I am trying to remove both spaces and pattern using one single sub function.
Working:
$ echo " OK => " |awk... (2 Replies)
Here is my list, which contains URLs for file downloads:
//servername.com/version/panasonic1,1_1.1.1
//servername.com/version/panasonic3,1_6.7.1
//servername.com/version/panasonic3,2_6.8
//servername.com/version/panasonic2,6_3.0.2
//servername.com/version/panasonic3,1_7.1.3... (5 Replies)
given this information:
^\w{3} {11} -]+ kernel:( \]+\.]+\])? ]+: media error \(bad sector\): status=0x]+ { DriveReady SeekComplete Error }$
^\w{3} {11} -]+ kernel:( \]+\.]+\])? end_request: I/O error, dev ]+, sector ]+
i need to set up monitoring for these strings. but as you can see, they... (2 Replies)
I would like to grep for aaa and bbb and ccc from one line in file1.txt in any order on a line on file2.txt
file1.txt
aaa bbb ccc
ddd fff ggg
hhh ddd jjj
jjj cccfile2.txt
aaa bbb ccc ddd fff ggg --> output whole line since it matches with aaa bbb ccc of file1.txt
aaa ddd jjj hhh --> no... (1 Reply)
Hi I am having a code as stated below
module abcd( a , b , c ,da , fa, na , ta , ma , ra ,
ta, la , pa );
input a , b, da ,fa , na , ta , ma;
output c , ra ,ta ,
la ,pa ;
wire a , b , da , fa ,na ,
ta , ma;
endmodule
I need to match the string... (1 Reply)
Hi,
I need help to match patterns from between two different files and extract region of strings.
inputfile1.fa
>l-WR24-1:1
GCCGGCGTCGCGGTTGCTCGCGCTCTGGGCGCTGGCGGCTGTGGCTCTACCCGGCTCCGG
GGCGGAGGGCGACGGCGGGTGGTGAGCGGCCCGGGAGGGGCCGGGCGGTGGGGTCACGTG... (4 Replies)
Discussion started by: bunny_merah19
4 Replies
LEARN ABOUT DEBIAN
devel::refcount
Devel::Refcount(3pm) User Contributed Perl Documentation Devel::Refcount(3pm)NAME
"Devel::Refcount" - obtain the REFCNT value of a referent
SYNOPSIS
use Devel::Refcount qw( refcount );
my $anon = [];
print "Anon ARRAY $anon has " . refcount($anon) . " reference
";
my $otherref = $anon;
print "Anon ARRAY $anon now has " . refcount($anon) . " references
";
DESCRIPTION
This module provides a single function which obtains the reference count of the object being pointed to by the passed reference value.
FUNCTIONS
$count = refcount($ref)
Returns the reference count of the object being pointed to by $ref.
COMPARISON WITH SvREFCNT
This function differs from "Devel::Peek::SvREFCNT" in that SvREFCNT() gives the reference count of the SV object itself that it is passed,
whereas refcount() gives the count of the object being pointed to. This allows it to give the count of any referent (i.e. ARRAY, HASH,
CODE, GLOB and Regexp types) as well.
Consider the following example program:
use Devel::Peek qw( SvREFCNT );
use Devel::Refcount qw( refcount );
sub printcount
{
my $name = shift;
printf "%30s has SvREFCNT=%d, refcount=%d
",
$name, SvREFCNT($_[0]), refcount($_[0]);
}
my $var = [];
printcount 'Initially, $var', $var;
my $othervar = $var;
printcount 'Before CODE ref, $var', $var;
printcount '$othervar', $othervar;
my $code = sub { undef $var };
printcount 'After CODE ref, $var', $var;
printcount '$othervar', $othervar;
This produces the output
Initially, $var has SvREFCNT=1, refcount=1
Before CODE ref, $var has SvREFCNT=1, refcount=2
$othervar has SvREFCNT=1, refcount=2
After CODE ref, $var has SvREFCNT=2, refcount=2
$othervar has SvREFCNT=1, refcount=2
Here, we see that SvREFCNT() counts the number of references to the SV object passed in as the scalar value - the $var or $othervar
respectively, whereas refcount() counts the number of reference values that point to the referent object - the anonymous ARRAY in this
case.
Before the CODE reference is constructed, both $var and $othervar have SvREFCNT() of 1, as they exist only in the current lexical pad. The
anonymous ARRAY has a refcount() of 2, because both $var and $othervar store a reference to it.
After the CODE reference is constructed, the $var variable now has an SvREFCNT() of 2, because it also appears in the lexical pad for the
new anonymous CODE block.
PURE-PERL FALLBACK
An XS implementation of this function is provided, and is used by default. If the XS library cannot be loaded, a fallback implementation in
pure perl using the "B" module is used instead. This will behave identically, but is much slower.
Rate pp xs
pp 225985/s -- -66%
xs 669570/s 196% --
SEE ALSO
o Test::Refcount - assert reference counts on objects
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2011-11-15 Devel::Refcount(3pm)