Hi,
I have a large file with a repeating pattern in it. Now i want the file split into the block of patterns with a specified no. of lines in each file.
i.e. The file is like
1...
2...
2...
3...
1...
2...
3...
1...
2...
2...
2...
2...
2...
3...
where 1 is the start of the block... (5 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)
I have a few txt files in some directory and I need to check their sizes one by one. If any of them are greater than 5mb then I need to split the file in two.
Can someone help?
Thanks. (6 Replies)
Hi Friends,
Below is my requirement. I have a file with the below structure.
0001A1....
0001B1..
....
0001L1
0002A1
0002B1
......
0002L1
..
the first 4 characters are the sequence numbers for a record, A record will start with A1 and end with L1 with same sequence number. Now the... (2 Replies)
Hello, I have a large file (2GB) that I would like to split based on pattern and size.
I've used the following command to split the file (token is "HELLO")
awk '/HELLO/{i++}{print > "file"i}' input.txt
and the output is similar to the following (i included filesize in KB):
10 ... (2 Replies)
I need to split a file if it is over 2GB in size (or any size), preferably split on the lines. I have figured out how to get the file size using awk, and I can split the file based on the number of lines (which I got with wc -l) but I can't figure out how to connect them together in the script.
... (6 Replies)
Hi ,
I have huge files around 400 mb, which has clob data and have diffeent scenarios:
I am trying to pass scenario number as parameter and and get required modified file based on the scenario number and criteria.
Scenario 1:
file name : scenario_1.txt
... (2 Replies)
i have file1.txt
asdas|csada|130310|0423|A1|canberra
sdasd|sfdsf|130426|2328|A1|sydney
Expected output : on eaceh third and fourth colum, split into each two characters
asdas|csada|13|03|10|04|23|A1|canberra
sdasd|sfdsf|13|04|26|23|28|A1|sydney (10 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,
I have a directory in Unix and there are folders available in the directory.
Files are created on different month and now i have a requirement to calculate size of the folder on month basis.
Is there any Unix command to check this please??
Thanks (6 Replies)
Discussion started by: Nivas
6 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)