Hello ,
I just installed openssh in my system . I actually tried to man sshd but it says no entry , though there is a man directory in the installation which have the man pages for sshd .
Can anyone tell me how should i install these man pages .
DP (2 Replies)
Hi,
I've written now a man pages, but I don't knwo how to get 'man' to view them. Where have I to put this files, which directories are allowed??
THX Bensky (3 Replies)
When reading man pages, I notice that sometimes commands are follwed by a number enclosed in parenthesis. such as:
mkdir calls the mkdir(2) system call.
What exactly does this mean? (4 Replies)
can anybody explain me how to read unix
man pages?
for example when i want to get information about ps command
man ps gives me this output:
***********************************
Reformatting page. Please wait... completed
ps(1) ... (2 Replies)
Hi,
I want to install man pages package from solaris 10.
Solaris 10 has already been installed on my servor but I have to add the man pages packages. I search for a long time on internet this package but I didn't find a compatible one... So I downloaded Solaris 10 from Sun site to get this... (1 Reply)
Hello sir,
I am using FEDORA 9.
I wanted to know why do we have ".1" extension in the archives of man pages. I know we are giving format.
I want to know the importance or purpose of this format.
Can you please tell me :confused: (2 Replies)
Hi everyone,
I have a small query, in solaris the man pages get displayed on half of the terminal , can i get a full terminal or full screen display ?:) (2 Replies)
Can anyone supply me with the man pages for:
omnidatalist
omnibarlist
omnisap.exe
I prefer the source man pages in nroff format.
A clue about the software bundles which supply these man pages is fine as well.
OS: HP-UX
TIA (11 Replies)
what command should i use for displaying the manual pages for the socket, read and connect system calls? (1 Reply)
Discussion started by: Nabeel Nazir
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)