I am trying to get the content of Apache access.log file for the current date for viewing purposes.
I can get it with the following sed command
sed -n '/09\/Oct\/2008/,/09\/Oct\/2008/p' access.log | less
now I want to enhance it such that it will automatically take current date instead of... (4 Replies)
Dear all,
I have a large file which is composed of 8000 frames, what i would like to do is split the file into 8000 single files names file.pdb.1, file.pdb.2 etc etc
each frame in the large file is seperated by a "ENDMDL" flag so my thinking is to use this flag a a point to split the files... (4 Replies)
Hi
I have a large file 2.6 million records and I am trying to split the file based on last column.
I am doing
awk -F"|" '{ print > $NF }' filename1
After around 1000 splits it gives me a error
awk: can't open file 3332332423
input record number 1068, file filename1
source... (6 Replies)
I have to split a file based on number of lines and the below command works fine:
split -l 2 Inputfile -d OutputfileMy input file contains header, detail and trailor info as below:
H
D
D
D
D
TMy split files for the above command contains:
First File:
H
DSecond File:
... (11 Replies)
hi ,
The scenario is like this,
i have a large text files (max 5MB , about 5000 file per day ),
Inside almost each line of this file there is a tag 3100.2.22.1 (represent Call_Type) , i need to generate many filess , each one with distinct (3100.2.22.1 Call_Type ) , and one more file to... (3 Replies)
I need to split the file
Conditions:
Ignore any record that either starts with 1 or 9
Split the file at position 404 , if position 404 is abc or def then write all the records in a file > File 1 , the remaining records should go in to a file > File 2
Further I want to split the... (7 Replies)
I have file listed like below
-rw-r--r--+ 1 test test 17M Nov 26 14:43 test1.gz
-rw-r--r--+ 1 test test 0 Nov 26 14:44 test2.gz
-rw-r--r--+ 1 test test 0 Nov 27 10:41 test3.gz
-rw-r--r--+ 1 test test 244K Nov 27 10:41 test4.gz
-rw-r--r--+ 1 test test 17M Nov 27 10:41 test5.gz
I... (5 Replies)
I have a file that is about 7 GB in size. The requirement is I should split the file equally in such a way that the size of the split files is less than 2Gb. If the file is less than 2gb, than nothing needs to be done. ( need to done using shell script)
Thanks, (4 Replies)
Hi Team,
I have a requirement in such a way that need to split the file into two based on which column particular value appears.Please find my sample file below.
Lets consider the delimiter of this file as either comma or two colons.(:: and ,). So I need to split the file in such a way that all... (2 Replies)
Discussion started by: ginrkf
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)