Are you asking for someone to explain the logic of your examples?
Do you have any knowledge or experience with awk?
I just want to know is there a difference between the position of 1 .
Are
and
the same? If you can help,I will be very thankful
Maybe it's just the print order, I am just not very sure,I need some expert say yes or no.
Hi All,
Very need help about format syntax on solaris 10.
I have done install Solaris 10 OS on sun fire v245 but currently i have a problem to use "format" command to display partition info for my hard drive.
i cannot enter the format menu, below is captured display :
# format
Searching... (7 Replies)
Hi all,
Just subscribed to this forum. Not a regular user of Unix.:)
I did the following:
We have a directory structure /a/b/c5/
Where c5 is the only directory inside b.
export ANOOP=/a/b/c*/
echo $ANOOP=/a/b/c5/
I have to create a symbolic link to anoop.txt in the directory... (2 Replies)
Hiii... There...
I am making a Script in which I am taking the value of a variable "var"
through key board.
But I want, if no values are supplied for "var" for more than 5 seconds then script shuld automatically exit.Script is as follow :
#cat abc
#!/bin/bash
echo "Enter Your Choice : "... (4 Replies)
Hi all,
I have an awk basic question.
file.text
Our Location:
Our home has light yellow siding,
and is a duplex on Main Street,
across from the High School,
and across the lane from the Health Center
If I run:
cat file.txt | awk '{print $2}' | grep... (7 Replies)
I have a script problem that I am not able to solve due my very limited understanding of unix/awk.
This is the contents of test.sh
awk '{print $1}'
From the prompt if I enter:
./test.sh Hello World
I would expect to see "Hello" but all I get is a blank line. Only then if I enter "Hello... (2 Replies)
I am looking at installing PiKdev which needs libqt3-mt and kdelibs4-dev. The installed package is qt-r1008952-i486-1 which claims to be a gui toolkit. find / -name "*libqt*" yields nothing with mt just a lot of support, compatible, and access widgets. Normally I would consider this a no go but... (0 Replies)
I find an script with awk sitting around. I went through some online manuals, but I can't figure out exactly how it works. I can't post the whole program. Not allowed.
This is the line that is confusing me. I get when else is in the script
grep -v "^REM " $1| grep -v "JUNK;" | awk -F" "... (2 Replies)
Im sure this is an easy question, but Ive tried and tried to get this to print all on one line and cant figure out why its not, so maybe someone can help
awk '/AP/{sub(/:80/, "", $4);printf $4"\t"} /User-Agent/{sub(/^*:/,"");print};sub(/\.80/,"", $4);/Host/{sub(/^*:/,""); print}'
What this... (10 Replies)
Hi,
I ran a script named cat item
when I searched for this script using command PS
I get two process . I don't understand this. Also this script has run for 15 minutes but the time is showing as 0:00:confused::confused:
ps -ef | grep cat_item
catmgr 4508 4486 0 05:10:29 ? 0:00... (5 Replies)
Hi,
I was trying to change the value of the 4th column (put '1' in the 4th column of each row). My awk command is:
awk -F, '{$3=1;}1' OFS= input.txt > ./test_out.txt
My input file is:
a 1 2 31
b 4 5 61
c 7 8 91
My output file (test_out.txt)is:
a 1 2 31
b 4 5 61
c 7 8 91
What... (4 Replies)
Discussion started by: pc2001
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)