Currently, I am planning a migration between machine which under True64UNIX. The new machine will run with higher version O/S. My question is, is there any solution on migrating one machine to another which with different O/S version? My goal is keeping minimum impact to the users.
Excuse my... (1 Reply)
I'm trying to see every file which my group (staff) has in a certain directory, recursively. The pipe
ls -l -R | grep staff
is not working exactly as I want, as for every directory to which my user does not have access, a line like:
ls: ./directory/lost+found: The file access permissions do not... (5 Replies)
If I have an oracle 9 database environment on a san running solaris 5.8 as the os. Can I plug the san into a Solaris 5.9 environment and have the database work ? - as long as binaries are on the san (1 Reply)
I have some UFS volumes (non root), that I would like to change into ZFS volumes.
Is this possible ?
I think the only method is to create a new zfs volume and copy the data accoss, this would take a long time for us. Is there a quicker way ?
Regards (5 Replies)
Here is the issue:
I am building a database server using Solaris 10x86 U8.
The system is jumpstarted with mpxio enabled and booting from the san.
We need to have powerpath 5.3 installed and would like to have powerpath take control of the the boot san as well or have mpxio control the san... (2 Replies)
Hi ,
I would like to (MYSQL) migrate the all the data from solari's to linux box.
I have checked whether mysql is installed or not.
rpm -qa | grep -i mysql
I confirmed !!!!
I want to know the following points.
1) How can get to know what are mysql data files and location as well.... (4 Replies)
Hi,I am using following code for FTP in shell script file and it is working.Now I want to migrate from FTP to SFTP.What code changes/steps I have to perform for SFTP ?
ftp -in <<FIN
open $SAP_UP_SERVER
user $SAP_UP_USER $SAP_UP_PASSWORD
asc
put... (7 Replies)
Discussion started by: Nitin Varshneya
7 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)