I recently took a training through a college, and have obtained the CUSA certification, but I've been looking and don't see any jobs in unix out there! Does anyone know of hidden job markets in the unix administration area, located in the Detroit - Michigan area? (4 Replies)
Hi,
Is it possible to grep only on a certain part of a file? Say I have file in.txt which contains below:
11/16 13:07:19.5436 --- ERROR 123 detected.
11/16 13:08:19.5436 --- Generating a <reading> event
11/16 13:08:19.7784 ---- Sending a <writing> event
11/16 14:08:37.4516 ---... (2 Replies)
Hello, this is my first post on the Unix forums. This is something that's been bothering me for a while, is there any particular UNIX/Linux application that will allow you to see you external IP address? :confused: ( The address beyond your router )
Thank you in advance, I could not find a... (4 Replies)
Hi,
I have a problem to use grep in my script .
If I want to grep the file for example : PTWO9089.txt
The code below works .
grep ^PONE
But, I dont know on how to grep the file like this 9066PTWO.txt
I'll try to use this code :
grep PTWO^ ,but it doesn't work.
For your info, the... (4 Replies)
hiii, Help me out..i have a huge set of data stored in a file.This file has has 2 columns which is latitude & longitude of a region. Now i have a program which asks for the number of points & based on this number it asks the user to enter that latitude & longitude values which are in the same... (7 Replies)
I have a list of Servers in no particular order as follows:
virtualMachines="IIBSBS IIBVICDMS01 IIBVICMA01"And I am generating some output from a pre-existing script that gives me the following (this is a sample output selection).
9/17/2010 8:00:05 PM: Normal backup using VDRBACKUPS... (2 Replies)
Hi,
I have a large number of data files each containing simple integers from 1 to around 25000 in ascending order. However, they are not in a specific progression; some numbers are missing in each file.
For ex. datfile1 may have the numbers in order 1 2 4 6 7 8 12 ... 24996 24999
while datfile2... (8 Replies)
I can obtain information from itdt inventory command however it display as below, I'd like to print each entity on one line but seperated by :
the file is something like and each section ends with Volume Tag
Drive Address 256
Drive State ................... Normal
ASC/ASCQ... (3 Replies)
Hi,
I have a file with thousands of lines as below
INSERT INTO T_DIM_CLNT(CLNT_KY,CLNT_OBJ_ID,ISI_CLNT_ID,OPERN_ID,CLNT_NM,PRMRY_SIC_CD,PRMRY_SIC_DSC,RET_AGE_NBR,REC_CRT_TS,REC_DATA_EXTRC_TS,ETL_LOG_KY)
VALUES ( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)... (5 Replies)
I have a script that outputs this as a file
John Smith
----------------
memberOf: example1;sampletest;test
memberOf: example2;sampletest;test
memberOf: example3;sampletest;test
memberOf: example4;sampletest;test
A Member of 4 Groups
Sally Smith
----------------
memberOf:... (4 Replies)
Discussion started by: ajetangay
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)