Good afternoon! Im new at scripting and Im trying to write a script to
calculate total space, total used space and total free space in filesystem names matching a keyword (in this one we will use keyword virginia). Please dont be mean or harsh, like I said Im new and trying my best. Scripting... (4 Replies)
Hello.
I have a status command in AIX box, which provides output as below:
$ status
You are running the application on pegasus2
----Program Name------|--Avail / Total---------|
MQ | 1/2 |
ORACLE | 10/10 |
TMADMIN ... (3 Replies)
Hi Everybody,
I have the following example file...
199|TST-GURGAON|GURGAON|1
199|TST-GURGAON|GURGAON|1
199|TST-GURGAON|GURGAON|1
199|TST-GURGAON|GURGAON|1
199|TST-GURGAON|GURGAON|1
199|TST-GURGAON|GURGAON|1
199|TST-GURGAON|GURGAON|1
199|TST-GURGAON|GURGAON|1
199|TST-GURGAON|GURGAON|1... (8 Replies)
hey i want to print the summary or the total disk usage of the configuration files that are in the /etc directory printed in human-readable format.
i think i got somewhere right as am using wc *.conf commands but i am unsure how to use to put it in human-readable format with the wc command.
... (13 Replies)
Have a input file like this .....
attachments 100G
shared 1T
archive 300M
documents 300G
remotedocs 150M
I need the total in GB's ... where as M=MB,G=GB,T=TB
Basically need awk to calculate the total based on end... (5 Replies)
Hi All,
I have a folder name lets say path/to/folder/CUSTOMER and under this i have several folders and each of these subfolder have serveral subfolders and so on and at some point i will have a folder name called "FTP_FILES" .
I need to search for these folders named "FTP_FILES and then... (10 Replies)
im trying to print all lines in the /var/log/syslog file that contain the pattern CRON. and after all the lines have been printed, i want a total of all the lines that contained "CRON" to be printed at the end.
the below command is printing the correct lines, but it is giving me the sum of all... (1 Reply)
Discussion started by: SkySmart
1 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)