Hello,
I am new to shell scripting and would really appreciate if someone could help me with this question.
I have a directory structure as follows..
main directory is DATA under which i have different directories names fileserver01, fileserver02 ... till fileserver 15.
under each... (8 Replies)
Hi,
I am trying to write a script that will move all the files from source directory structure(multiple levels might exist) to destination directory structure. If a sub folder is source doesnot exist in destination then I have to skip and goto next level. I also need to delete the files in... (4 Replies)
i have a text file as.
/database/sp/NTR_Update_Imsi_List.sql
/database/sp/NTR_Update_Imsi_Range_List.sql
/database/sp/NTR_Vlr_Upload.sql
/database/tables/StatsTables.sql
/mib/ntr.mib
/mib/ntr.v2.mib
/scripts/operations/ntr/IMSITracer.ph
/scripts/operations/ntr/IMSITracer.pl ... (3 Replies)
I need to transfer software off a SCO OpenServer 5.0.5 server. I can not seem to read this server's tape on my other server since the tape drive (IBM Gen 5 DAT 72GB) will continuosly "eject" this DAT 8 tape. I have been able to 'tarball' most of the smaller directories with success and... (11 Replies)
Hi,
I need to delete an empty directory in a temp directory except "dir5" (keep everything that is not empty).
Plese advise.
Here is an example of my directory.
/dir/temp/
dir1 - delete if this is empty
dir2 - delete if this is empty
dir3 - delete if this is empty
dir4 - delete if this... (7 Replies)
Hello Team,
We would like to backup a lot of files inside of a structure of directories, four, five or more levels in some Ubuntu, Mac and Solaris systems.
For instance:
/home/chuck/sales/virgin/rent-quote.pdf
/home/chuck/sales/marriott/vacation-quote.pdf... (2 Replies)
Hi Folks,
There is a job which generates a .zip files every day at /usr/app/generated directory , now please advise for the script that will delete this zip files permanently.but while deleting it should make sure that it will not delete the last two days recently generated zip files and this... (1 Reply)
how to remove empty files tried below command its remove only zero bytes not empty file which is greater then zero byte.
for x in *
do
if
then
rm $x
fi
done (8 Replies)
Discussion started by: Kalia
8 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)