hi
i am having a file of following kind:
20015#67143645#143123#4214
62014#67143148#67143159#456
15432#67143568#00143862#4632
54112#67143752#0067143657#143
54623#67143357#167215#34531
65446#67143785#143598#7456
75642#67143546#156146#845
24464#67143465#172532#6544... (5 Replies)
I need to read contents of directory and create a list of data files that match a certain pattern and process by renaming it and calling a existing .ksh script then archiving off to file another directory. Any suggestions or samples u could point me to on using .ksh perl or other to process... (5 Replies)
I have some process . How should i know that the process is still processing data or got hanged even though it is showing that it is running in background
I know of a command called truss. how should i use this command and determine
1) process is still processing data
2) process got hanged... (7 Replies)
Hi, everyone,
I have a matrix, let's say:
1 2 3 4 5 6 ...
4 5 6 7 8 9 ...
7 8 9 1 2 3 ...
3 4 5 6 7 8 ...
.........
(nxm matrix)
Is there a simple command that can take certain specific rows out of the matrix?
e.g., I want to take row 2 (4 5 6 7 8 9 ...) and row 4 (3 4 5 6 7 8... (2 Replies)
I have a file, first 5 columns are very normal, like "1107",106027,71400,"Y","BIOLOGY",,
however, the 6th columns, the user can put comments, anything, just any characters, like new line, double quote, single quote, whatever from the keyboard, like"Please load my previous SOM597G course content in... (3 Replies)
Hello guys!
I have some issue in how to processing some data.
I have some files with 3 columns. The 1st column is a name of my sample. The 2nd column is a numerical sequence (very big sequence) starting from "1". And the 3rd column is a feature of each line, represented for a number (completely... (2 Replies)
Dear fellow members,
I've just joined the forum and am a newbie to shell scripting and programming. I'm stuck on the following problem.
I'm working with large scale genomic data and need to do some analyses on it. Essentially it is text processing problem, so please don't mind the scientific... (0 Replies)
Hello,
I have some bitrate data in a csv which is in an odd format and is difficult to process in Excel when I have thousands of rows. Therefore, I was thinking of doing this in bash and using awk as the primary application except that due to its complication, I'm a little stuck.
... (24 Replies)
Hi guys, I receive a list from pipe (with fixed number of lines) like this:
name1
name2
name3
And in my ./ folder I have three files:
01-oldname.test
02-someoldname.test
03-evenoldername.test
How to rename files one by one using while read?
Desired result:
01-name1.test
02-name2.test... (3 Replies)
Discussion started by: useretail
3 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)