solaris 10
logged in as root to command line...want to shut the system down....could not do this....when i chose shutdown the system seemed to squawk at me saying i'd lose whatever i was working on would be lost unless i logged out...after proceeding through this it took me to the gui log in... (6 Replies)
Dear Exerts,
I want to schedule a script which could run after every 35 minutes.
please find below the command but it is not woring and running after every 35 minutes.
35 * * * * /opt/home/backup/test_dir/abc.sh > /opt/home/backup/test_dir/abc_cronlog.txt
Please tell me what is the problem... (7 Replies)
I have Oracle 9i R2 on AIX 5.2. My Database is running in shared server mode (MTS).
Sometimes when I shutdown the database it shutsdown cleanly in 4-5 mints and sometimes it takes good 15-20 minutes and then I get some ora-600 errors and only way to shutdown is by opening another session and... (7 Replies)
I have a smart-ups connected to my OS X Snow Leopard server ver. 10.6. Based on the docs and forums I read, I have been trying to use the software provided by APC, PCNS. I have also tried to just use the UPS communications cable provided and use the OS' "UPS options". Neither of them work exactly... (1 Reply)
hi everyone I'm newbie in this forum hope I can get some help here :)
I have a command in crontab that executed every 1 minute
sometime this command need more than 1 minute to finish
the problem is, the crontab execute this command although it's not finish processing yet and causing the system... (7 Replies)
This is probably a simple question, but I'm new with writing scripts for Linux (IPFire in this case) and Google wasn't helpful with this.
When creating a script, what is the best and/or proper way to have it exit automatically if the reboot or shutdown command is given? If that's even... (2 Replies)
Dear All,
I created a small script to get the CPU, GIS usage etc automatically. However when i run this script manually its working , but when i run through cronjob i am not getting any output.
Can anyone please help me on this. I am using SuseLinux.
Thank you in advance.
#!/bin/sh
{... (2 Replies)
Hello,
I have a backup script that runs an rsync backup to an external drive. I use the script frequently on Windows and Linux and have installed it on a Mac. The script has an option to run shutdown after the backup has completed. Since backup can take hours to run, this is an option that is... (10 Replies)
Discussion started by: LMHmedchem
10 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)