Hi All,
I have a RPM for an Java based application. Currently it works fine.
But recently I want to implement that when newer packages gets installed over the older one, the rpm should only update the older files with the newer one (I know this could be done by rpm -Uvh xxx.rpm), but it... (0 Replies)
Hi All,
Can anyone help to write the script to check files updation?
i have files as mentioned below. which will be updated some time.
i just want to check the last file is updating the data for last 15 mins or not.
if its not updating i want to print NOT OK. if its updating data i want... (1 Reply)
Hi All,
can anybody explain me how to ftp files from local system to unix server using Shell scripting without using any softwares.
i have developed some code but its not wrking.
lclpath=/dba58/d039/ftppubd/ajay
echo $lclpath
cd $lclpath
user='rajesh'
pswd='rajesh'
host="3.209.136.253"... (5 Replies)
Hi friends,
I am trying to check if the two files i am expecting are created in a specific location.
if both files does not exist, do an echo
if -a ]; then
echo "files not found"
fi
It gives me the following message:
bash: Please help! :) (3 Replies)
Hi All,
I'm a newbie in Linux Programming.:)
Got some 500 processes running and I have around 20-30 logs updating for every 2mins on a server. The logs which i'm referring usually contains book name,run ids(not PID's),process name etc etc.
I'm interested in finding out whether some particular... (1 Reply)
I want to move all files from one directory to another directory excluding today (sysdate files) on daily basis.
file name is in pattern file_2013031801, file_2013031802 etc (2 Replies)
Hi,
I have the shell script requirement mentioned below :
List all java and c files or all files in directory and sub directories' in folder structure in current dir.
then search for pattren1 in all files globally and replace with other string .
And also check the date... (3 Replies)
(Apologies for any typos.)
OSX 10.12.3 AND Windows 10.
This is for the serious Python experts on at least 3.5.x and above...
In script format sys.stdout.write() AND sys.stderr.write() seems to work correctly.
Have I found a serious bug in the interactive sys.stdout.write() AND... (2 Replies)
i have 3 regions like AWS,EMEA,APJ and i use to get 3 files like a,b,c files at 3 am ust for AWS region in common shared path and x,y,z files At 10 am ust for EMEA and 1,2,3,4,5 files at 11 pm UST for APJ region. In this files name wont change daily it remain same but the file name is not same for... (2 Replies)
Discussion started by: saranath
2 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)