I watched this done a long time ago, but cannot find it anywhere. I need to alias the boot device "disk" to /sbus@7,0/QLGC,isp@0,10000/sd@c,0
I think I need to set "use-nvramrc?" to true, and then create an alias within the nvramrc to point disk to the boot disk, but this is the step I cannot... (3 Replies)
Hi All,
I am setting bash as my working shell in my .profile file.
So I have written a line :
bash
as the list line in my .profile
I want to use alias as follows:
alias me='who am i'
When i log in, as expeced I enter the bash shell but alias doesn't work.
Is it because the alias is defined... (1 Reply)
I'd like to make a script that I can execute every time I sign on to my linux box that keeps track of the time and allows to me to add a remark to a file. So basically once I log in, I run the script, and it outputs the date and time to a text file (log.txt). But that isn't my problem.
I need... (1 Reply)
I was just wondering how you would echo out different length variables but still have them all line up. I tried putting tabs between the variables but that didn't work as planned.
For example this is in some loop, with different variables in it each time:
echo "$1 $2 $3 $4 $5"
Appears like... (3 Replies)
Hi Everyone,
I am trying to set up alias the only way I now how, buy making entry into .bashrc file.
The entry I made is
alias ll='ls -lrt'
It is not working as I expect. When I enter "alias" at the command line I get the following.
$ alias
alias l.='ls -d .* --color=tty'
alias... (2 Replies)
Hi All,
I need some information on 'Alias' setting in SUN SOLARIS.:confused:
Q1. I want to know how can i set my alias here.
Q2. How to view all set 'ALIAS' for me. (say /home/jdash user)
Q3. Can i modify the set 'Alias' for me or for whole environment.
Q4. Is Alias setting can be change... (2 Replies)
Hi
i have a user "SYSTEM"
i want to set the below command in his .profile for an alias:
who | awk '{print $1}'| sed '/SYSTEM/d' | sed '/root/d' |xargs -i pkill -u {}
i tried as below:
alias stop = " who | awk '{print $1}'| sed '/SYSTEM/d' | sed '/root/d' |xargs -i pkill -u {}"
... (3 Replies)
If one:
$ find -name 'some expression' -type f > newfile
and then subsequently wants to create an alias file from each pathname the find command retrieved and the > placed within 'newfile', how would one do this? Ideally, the newly created alias files would all be in one directory.
I am... (3 Replies)
Hello,
I'd like to have an alias to view some processes sorted:
I have:ps -ef | grep pmon | awk -F" " '{ print $8" "$0 }' | sort | cut -d" " -f2- | grep -v "grep pmon" It doesn't work, however, if I put it as alias because on acutes insize awk:alias pmon='ps -ef | grep pmon | awk -F" " '{ print... (4 Replies)
Discussion started by: JackK
4 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)