I'm trying to get the uptime of my computer (Mac OS X) and I can go into the terminal and type "uptime" OK, and that gives me a string with the uptime in it. The problem is that the string changes a lot, and its very difficult to get the data I'm trying to extract out cleanly.
Now I have 3... (2 Replies)
On HP-UX, the 13th argument of uptime is sometime the load and sometime the word AVERAGE:???
14 Jun 06 5:00pm up 44 days, 54 mins, 0 users, load average: 0.00, 0.02, 0.03
14 Jun 06 5:15pm up 44 days, 1:09, 0 users, load average: 0.00, 0.01, 0.01
When the time is in minutes, then the load... (1 Reply)
hello folks!
how can I display just the uptime without the current time, the word "up", and the load averages using the uptime command or some other command I do not know about? (13 Replies)
HI All,
I have problem with "uptime" on one of the sun server.(SunOS 5.9 Generic_118558-11 sun4u sparc SUNW,Sun-Fire-V240).when i am issuing uptime command its not showing uptime.even its not showing output for who -b.
$ uptime
11:01am 1 user, load average: 0.06, 0.04, 0.03
$ who -b
$... (3 Replies)
Hi gurus,
Is it possible to get the time on when the server was re-started or does the output from who -b is the answer to my question? UNIX flavour is Solaris.
The uptime command gives information on how long the server has been up but I want to know when the server was started. The output... (4 Replies)
Hi!
I want to extract the uptime from the output of the uptime command.
The output:
11:53 up 3:02, 2 users, load averages: 0,32 0,34 0,43
I just need the "3:02" part. How can I do this?
Dirk (6 Replies)
Hi All,
Having recently started a new job, a Data Center Migration in fact I have been tasked with looking at some of the older Solaris boxes when I came across this little gem.
nismas# uname -a
SunOS nismas 5.5.1 Generic_103640-27 sun4u sparc SUNW,Ultra-1
nismas# uptime
10:37am up 2900... (2 Replies)
Discussion started by: gull04
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)