I'm sure there things have only been asked a thousand times (I just couldn't find the answers):
I am running Panther (Mac OS X ver. 10.3.2.).
I am using the (default) bash shell.
I am *starting* to write shell scripts.
I would like to "install" some shell scripts, so that they are always... (2 Replies)
Hi,
I need a shell script that when run should be able to find the geographical location of the system.
can anyone help me with this?
Thanks,
Sundeep (1 Reply)
Create a script that copies files from one specified directory to another specified directory, in the order they were created in the original directory between specified times. Copy the files at a specified interval. (2 Replies)
Hello,
I have a doubt:-
---------------------
Current script:-
################################################################################################
prefix=user@my-server:
find . -depth -type d -name .git -printf '%h\0' | while read -d "" path ; do (
cd "$path" || exit $?... (4 Replies)
Hi,
I am using Solaris 10 OS and trying to create shell script that can add input at certain location into a file.
The input that I am trying to put is new domain name
e.g
@newdomain.com
the file contains,
more test01.out
user/zzzz786@st.com/INBOX
user/zzzz@po.com/INBOX... (8 Replies)
I want to change the path for the command in a shell. I want to make it easier to type in the command when I run the shell. As of now, I have to type in /bin/ls but I want to just type in "ls" instead. I have altered the function below to do this but it's not working. It still must have the full... (1 Reply)
Hi All,
i'm trying to copy the 1.txt files (sample files) in to different path location using the below command.
But it is not copying the files , when i tried for single location able to copy the file.
can any one please assist here.
Please find the below path :-
/ckr_mkr1/licencekey... (2 Replies)
Is there any possible way transfering the file from unix to shared location using shell script.
i had created the batch script to fetch the files from unix to shared location and it works fine. Due to some problem in windows unable to transfer the file to shared location automatically. can anyone... (2 Replies)
Hello,
I am creating a file with all the source folders included in my git branch, when i grep for the used source, i found source included as relative path instead of absolute path, how can convert relative path to absolute path without changing directory to that folder and using readlink -f ? ... (4 Replies)
Discussion started by: Sekhar419
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)