Hi all,sorry for my english but i don't speak it very well.
I have a problem, i need to print a file from a unix machine to a printer on another unix machine (with another host).
I think that it's possible making a connection with telnet to this machine and after to print on the machine in... (3 Replies)
How to enable this command ?
Thanks.
---------- Post updated at 03:36 AM ---------- Previous update was at 03:34 AM ----------
I forgot to tell it is Unix server (3 Replies)
Hi All,
I have around 900 Select Sql's which I would like to run in an awk script and print the output of those sql's in an txt file.
Can you anyone pls let me know how do I do it and execute the awk script? Thanks. (4 Replies)
Hello guys,
I would like to develop a script which takes a host name as argument and displays a message whether the host is on the local network or not. How can I accomplish that? Is there a file or command that I can use to list all host on the local network? :confused: (4 Replies)
Hi all,
Can anyone help with the following request?
I need to extract HOST value, SERVICE_NAME and msec value from a tnsping output and append to a file. The tnsping output is typically as follows:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS =... (4 Replies)
Hi,
I have multiple files that each contain one column of strings:
File1:
123abc
456def
789ghi
File2:
123abc
456def
891jkl
File3:
234mno
123abc
456def
In total I have 25 of these type of file. (5 Replies)
Hi,
tnsping is an Oracle tool that is sort of like a ping command. Unfortunately it does not come with a tool that can be used to parse its output which is very frustrating.
Example output of tnsping are as below:
$: tnsping testp1
TNS Ping Utility for Solaris: Version 11.2.0.2.0 -... (3 Replies)
hello All. I am working on something that should be really simply.
It turns out that its not. I am trying to produce output to list the hostname along with all the current running programs.
the script im using is:
for PS in `ps -Ao "user,args" | cut -d' ' -f1,2`
do
echo "`uname -n`, $PS"... (5 Replies)
hello all
I am trying to create a comma seperated file of the pkginfo command. The follwoing works pretty well.
pkginfo -l | egrep '(BASEDIR|NAME|VERSION)' | awk '{print}' ORS=', '
however, there are two issues.
1, For some reason it does not load into excel properly. It loads as... (7 Replies)
Hi,
I need some advise on how to print 'sections' of the attached file. I am searching for some that says Marked Corrupt and print some lines after it.
At the moment I am running the command below:
sed -n -e '/Marked Corrupt/{N;N;p;}' rman_list_validate.txtThis gives me the following... (1 Reply)
Discussion started by: newbie_01
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)