Can you guys help me, I have two files:
File A
60|11111|
601|11111|
6012|11111|
6013|11111|
60142|11111|
File B
642|11111|
659|11111|
852|11111|
6012|11111|
6013|11111|
I want to combine the two file into:
File C
60|642|
601|642|
6012|642| (2 Replies)
Hi Guys,
I want to combine 2 files and and put together in 1 file and make two columns out it. See below desired output. Any help will be much appreciated.
inputfile1.txt
12345
67890
24580
inputfile2.txt
AAAAA
BBBBB
CCCCC (11 Replies)
Hello everybody,
I have some large files containing statistical data. The data is stored in the following generic format:
>cat my_file
1, 2, 3
1, 2, 3
1, 2, 3
>
The values of columns no.2 and 3 are expressed in bytes. I would like to transform them in Megabytes, by dividing them with... (3 Replies)
I have a text file that has three columns. But at the end of the text file, there are trailing lines that have missing second and third columns:
4 0.04972604 KLHL28
4 0.0497332 CSTB
4 0.04979822 AIF1
4 0.04983331 DECR2
4 0.04990344 KATNB1
4
4
4
4
How can I remove the trailing... (3 Replies)
Hi, I am trying to multiply column#1 with column#2 using a shell script. How can I make a for-loop script using 1st column as "i" and the second column as "j" from the following file? Please feel free to share any alternative ways to multiplying column#1 with column#2.
.06 5.0000
.49 ... (6 Replies)
Hello everyone,
I searched the forum looking for answers to this but I could not pinpoint exactly what I need as I keep having trouble.
I have many files each having two columns and hundreds of rows.
first column is a string (can have many words) and the second column is a number.The files are... (5 Replies)
Good morning all,
I have a problem that is one step beyond a standard awk compare.
I would like to compare three files which have several thousand records against a fourth file. All of them have a value in each row that is identical, and one value in each of those rows which may be duplicated... (1 Reply)
I'm trying to learn awk, but I've hit a roadblock with this problem. I have a hierarchy stored in a file with 3 columns:
id name parentID
4 D 2
2 B 1
3 C 1
1 A 5
I need to check if there are any values in column 3 that are not represented anywhere in column 1. I've tried this:
awk '{arr;}... (7 Replies)
Columns 4 and 5 are X and Y coordinates, column 6 is the elevation
I would like to add 2 new columns at the end of the file with values
the distance between first(X)(Y) and last location (X)(Y), based in 2 rows
the difference in elevation = ($6-prev6)
How to calculate the requested values... (6 Replies)
Discussion started by: jiam912
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)