Hi,
I have to manipulate a data file which say reads like this
{$index $value $error_on_value}
aa 4.56 0.7
bb 123.456 0.00987
cc 987654 321
.
.
in easily human readable format of type
aa 4.6(7)
bb 123.456(1)
cc 9.877(3)e+05
value rounded to 4.6 with error of 0.7 on the last... (4 Replies)
Input
217:fngadi4osa:fngadi4osa:M 217:415744:N/A
227:fngadi4osa:fngadi4osa: M 227:51200:N/A
228:fngadi4osa:fngadi4osa: M 228:102400:N/A
65:sapgt04:sapgt04: M 65:104448:N/A
228:fngadi4osa:fngadi4oma: M 228:102400:N/A
Output
217:fngadi4osa:fngadi4osa:M 217:415744:N/A... (3 Replies)
Hi,
i need a perl script which reads the file, content is given below. and output in new file.
TARGET DRIVE IO1 IO2 IO3 IO4 IO5
------------ --------- --------- --------- --------- ---------
0a.1.8 266 236 ... (3 Replies)
Good morning,
I am still learning the powers of awk and perl. I am in need of a bit of help.
I have a script on one of my launch systems...if that is even the word for it. Basically you can only ssh to a system if you are connected to this system due to firewalls.
So from that system, I... (2 Replies)
Hello,
I need help with a perl script that will process a text file and match virtual server name to profile(s). the rest will be ignored.
Virtual server name follows the word "virtual" in the begging of the line.
There could be multiple profiles assigned to one virtual server.
For example, ... (3 Replies)
hi all,
I want to Represent the data in table format in mail content
sample data should be like this...but i m trying to send this table to mail using unix command...hw do i do????even i echoed the table contents ...doesnt work.... help me
<table style="background-color:lightblue;">... (8 Replies)
HI
I have a file that looks like below
abc
{Seq('GATAGC', SingleLetterAlphabet()): 1, Seq('ATAGCG', SingleLetterAlphabet()): 1, Seq('TAGCGG', SingleLetterAlphabet()): 1}
BBC
{Seq('AGGATA', SingleLetterAlphabet()): 1, Seq('GGATAG', SingleLetterAlphabet()): 1, Seq('GATAGC',... (2 Replies)
Discussion started by: biofreek
2 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)