Tim Bass
Thu, 15 Nov 2007 23:55:07 +0000
*I predict we may experience less*debates*on the use of the term “event cloud”*related to*CEP in the future, now that both IBM and Google* have made announcements about “cloud computing” and “computing cloud”, IBM Turning Data Centers Into ‘Computing... (0 Replies)
Dear Experts,
I need to extract specific records from one file which has multiline records.
Input file pattern is:
============
aaaaaaaa
bbbbbbbb
asdf 1234
cccccccc
dddddddd
============
aaaaaaaa
bbbbbbbb
qwer 2345
cccccccc
dddddddd (7 Replies)
Hi All,
I want to write a script to create flar images on multiple servers. In non zfs filesystem I am using -X option to refer a file to exclude mounts on different servers.
but on ZFS -X option is not working. I want multiple mounts to be ignore on ZFS base system during flarecreate.
I... (0 Replies)
Hi, I have a file with two different people, each with there own figure next to it. How would I use a sed command to try and change the correct corresponding value? or is another command more appropriate? I have tried
sed -n '/dan/p' money | sed -i 's/1000/1500/g' money
the file contents are... (5 Replies)
i have file A as below contents
---------------------------
Use descriptive thread titles when posting.
For example, do not post questions with subjects like
"Help Me!", "Urgent!!" or "Doubt".
For example, do not post questions
For example, do not deliminated.
output file as below:... (2 Replies)
how to use "awk" to print any record has pattern not equal ? for example my file has 5 records & I need to get all lines which $1=10 or 20 , $2=10 or 20 and $3 greater than "130302" as it shown :
10 20 1303252348212B030
20 10 1303242348212B030
40 34 1303252348212B030
10 20 ... (14 Replies)
Hi,
Do anybody know how to print out only those record that column 1 is "a" , then followed by "b"?
Input file :
a comp92 2404242 2405172
b comp92 2405303 2406323
b comp92 2408786 2410278
a comp92 2410271 2410337
a comp87 1239833 1240418
b comp87... (3 Replies)
Hi Experts,
we have a requirement , need your help to remove the footer record in the file.
Input file :
1011070375,,21,,NG,NG,asdfsfadf,1011,,30/09/2017,ACI,USD,,0.28,,,,,,,,,,,,
1011070381,,21,,NG,NG,sgfseasdf,1011,,30/09/2017,ACI,GBP,,0.22,,,,,,,,,,,,... (6 Replies)
Discussion started by: KK230689
6 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)