Hi All,
I am trying to write a shell script which firstly will search some files and then increase the port numbers mentioned in them by a certain no.
let me clear it with an example-
suppose there r few files a,b,c,d....
file a's content-
<serverEntries xmi:id="ServerEntry_1"... (3 Replies)
Morning,
I have a database log file that i need to scan thru to find all successful logins within the last 40 days,
What i have currently done is create a bash script to scan the last month and pipe out the results to a text file.
YEAR=`date '+%Y'`
MONTH=`date '+%m'`
grep 'Login... (12 Replies)
Hello all,
New to this forum!
I got a Q: i want to find all files with numbers in the file name. e.g. blabla234.pm or fool654.pl
action i took:
ls | egrep '+'
ls | egrep
ls | egrep +
ls | egrep ''
ls | egrep '(+)'
ls | egrep '()'
ls | egrep '(.*.*)'
ls | egrep '.*.*'
ls | grep... (2 Replies)
cat *.out |grep "<some text>" | awk '{print $6}'
For ex,This will reutrn me
11111
22222
is it possible to add these two numbers in the above given command itself?I can write this to a file and find the sum.
But I prefer to this calculation in the above given line itself.
Any... (3 Replies)
Hi,
I want to write a script that does something like this:
I have a file, in which in every line, there is a string of words, and followed by some space, a number.
Now, I want to identify the line, which has the largest startFace number (say m=8118), take that number and add it to the... (2 Replies)
i want to basically get the lowest numbers from a list ... for example my input file is ....
1
2
3
6
7
8
9
10
11
13
Now i want to create a script or a one liner which i can use like this ...
for example ..../getlowest 3 --> this gives me the next 3 lowest numbers which... (6 Replies)
Hi,
I have a file as
ABC 1634230,1634284,1634349,1634468 1634272,1634301,1634356,1634534
What I want is to find distance between the numbers.. column 1 is the gene name and column 2 are starts and column 3 are their respective stops for the starts. So what I want is column 3 which has +1... (2 Replies)
Dear All
I am having data file containing 0 to 40,000 like this...
0 5
1 65
2 159
3 356
...
...
40000 19
I want to find the probability of distribution between the numbers. The second column values are angles from 0 to 360 and the 1st column is number of files.
I am expecting... (2 Replies)
Discussion started by: bala06
2 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)