hi everybody,
i have a small unix script and i want to use it with java, so how can i executte unix command with java (if it is possible): in fact i want to use some values returned by this script with java swings.
is it possible (of course everything is possible) but how can i do? thank you in... (4 Replies)
Hi ,
after pressing down arrow,up arrow
I want to find previous,next command in unix
wat can i do for tat plz tell me
I am accesing unix server thru telnet.
my shell prompt ksh (4 Replies)
Hi all,
Is there a way to bring back the previous unix command without retyping?
I tried the "arror up" key, and it seems not working (sun solaris). What is the correct way?
Thanks! (4 Replies)
Hi all,
I tried to execute the command by 2 ways :
1) Java Runtime class exec method - but the problem there is that it only can execute scripts without arguments(I need with args)
2) the Jtux classs Uprocess- the problem it is not supported by windows and my eclips platform is on... (0 Replies)
Hi guys,
I'm completely new to UNIX and Linux and all that stuff. I've been using webhosting (shared) for some time years now and recently I've wanted to carry out some tasks that have had some commands which are not familiar to me. One was to install Mailman and the other to copy files from one... (6 Replies)
i have a problem situation, where i have a html file say click.html. i have a button "ls" in that html page. i run this html file in windows....Now say if i click that "ls" button it must connect to the unix server and execute ls and return the results back to html page in windows. can anyone tell... (8 Replies)
Hi All,
I am trying to run the PMCMD commend to execute the informatica workflow but while executing from my home directory i am getting below error
ksh: pmcmd: not found
I executed from my server/bin directory too. I am getting the same error.
My commend is:
pmcmd startworkflow -sv... (3 Replies)
Hi Gurus,
I have the below requirement,
Execute an unix script which will pick the latest file from the archive directory and do a grep (on multiple patterns) on that file.
processingDir="/usr/apps/irdc/informatica/spsf_sales/TgtFiles/ARCHIVE"
filename = 'ls Check* | sort -n -k 2 |... (6 Replies)
hi all,
I use
date +%Y
which gives Current year.
Requirement: I want previous year to be printed. Please help me.
Note: I tried
date +%d/%m/%Y -d "-1 years" which is not working. (10 Replies)
Discussion started by: wasim999
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)