just put blank harddisk in my ultra10. i see no display to show me the
boot> prompt. i don't know what happened....?? Got a third party graphic card. Display was ok. Monitor seems to be ok. i used different one with same result. (1 Reply)
I have two Dell x86 machines on which I am attempting to install Solaris 10 from CD. I am not doing a Jumpstart install. This is my first experience in installing Solaris (or any other OS). I am following the instructions at How to Quickly Install the Solaris 10 1/06 OS
The first machine... (3 Replies)
Hi all,
Can you tell me how to change the prompt color (only the path part) when I chnange directory with "cd"?
I use the sequence below in ".bashrc" (Solaris 8) to change my prompt colors and I'd like to modify it to change the path color when I cange directory.
PSC() { echo -ne "\"; }... (0 Replies)
HI ,
I am trying to wite a script that will prompt me saying " what is path that you want to find ?". once i specify the path, the script should put this path in the find command mentioned below and execute the script:
find <path> -ctime +200 -type f -exec ls -l {} \;
for example :
... (7 Replies)
I am new to to unix and I want to make my own basic shell. What is the code I can use to change the unix cmd console display? For example my unix display prompt says MyCompterName~, I want it to say WhatEverMan~ (3 Replies)
Hello All,
I would like to display the current time in prompt.
I tried using following command:
export PS1="$(date +%k:%M:%S) $ "
but it gave me a fixed time in prompt whereas my objective is to get the current time everytime.
$ export PS1="$(date +%k:%M:%S) $ "
17:42:42 $
17:42:42 $... (32 Replies)
I don't understand the question below..any can help me? thanks
Display the absolute path of the executable used when a
'grep' command is entered on the command line:
---------- Post updated at 08:30 PM ---------- Previous update was at 08:29 PM ----------
absolute (2 Replies)
In the below bash function multiple variants are input and stored in a variable $variant, and each is written to an out file at c:/Users/cmccabe/Desktop/Python27/out.txt stored on a separate line.
# enter variant
phox2b() {
printf "\n\n"
printf "What is the id of the patient getting... (0 Replies)
Discussion started by: cmccabe
0 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)