hello:
I am a somewhat experienced unix user, but brand new to this forum. I am encountering a strange new problem.
I have a shell script called foo.ksh it has been running for years (literally) on my Sun (Solaris 8) machine.
Recently we put a version of samba on this machine to... (3 Replies)
Hi,
I am trying to write a script, which queries a db to get the names of processes, stores it in a file and then checks if that process is running on a remote server. However I am not getting it right, could anyone help me out.
#!/bin/sh
echo "select Address from Device where Cust =... (5 Replies)
How can I print ONLY processes running for more than 24 hours. Using ps command or any other method
I use this to get a whole list.
ps -eo pid,pcpu,pmem,user,args,etime,cmd --sort=start_time
We can also sort the outout of the above command to list processes older than 24 hours using... (9 Replies)
Hello,
Please help me with a script with which I can check long running processes on the database server and the os is AIX.
Best regards,
Vishal (5 Replies)
I want to check how many processes are running with same names and get their respective counts.
ps -ef|grep -Eo 'process1|process2|process3| '|sort -u | awk '{print $2": "$1}'
Output would look like :
$ ps -ef|grep -Eo 'process1|process2|process3| '|sort | uniq -c | awk '{print $2":... (8 Replies)
Hi,
Is it possible to display processes which have been running for more than a 5hrs using a variation of the ps -ef command?
Regards,
Manny (5 Replies)
Hello Guys,
I need some help to find out if processes are running on remote server or not. I could do 'ssh' to do that but due to some security reasons, I need to avoid the ssh & get result from remote server.
Could you please suggest some that can be done without ssh or similar sort of... (8 Replies)
I work at a company that uses a program written in AWK to track various data and prepare reports. Worked with this program for three years plus (the author is no longer with us) and the YTD Production report will not return a report with a date after 123119. This is a problem. Below is the (I... (3 Replies)
Discussion started by: paulgdavitt
3 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)