Hi,
I have a file that looks like this:
s6 98
s6 91
s6 56
s5 32
s5 10
s5 4
So what I want to do is print only the highest value for each value in the column:
So the file will look like this:
s6 98
s5 32
Thanks (4 Replies)
Hi everyone,
This is my first post, but I have already received a lot of help from the forums in the past. Thanks!
I've searched the forums and my question is very similar to an earlier post entitled "Printing highest value from one column", which I am apparently not yet allowed to post a... (1 Reply)
I have a file1 that looks like this:
File 1
a b
b c
c e
d e
and a file 2 that looks like this:
File 2
b
c
e
e
Note that file 2 is the right hand column from file1. I want to remove any lines from file1 that begin with the column in file2. In this case the desired output... (6 Replies)
My item was not answered on previous thread as code given did not work
I wanted to print records from file2 where comparing column 1 and 16 for both files find rows where column 16 in file 1 does not match column 16 in file 2
Here was CODE give to issue
~/unix.com$ cat f1... (0 Replies)
file1:
file2:
I need to find matches for any lines in file1 that appear in file2. Desired output is '>' plus the file1 term, followed by the line after the match in file2 (so the title is a little misleading):
This is honestly beyond what I can do without spending the whole night on it, so I'm... (2 Replies)
Hi again!
I am still impressed how fast I get a solution for my topic "average specific column value awk" yesterday.
The associative arrays in awk work fine for me!
But now I have another question for the same project.
Now I have a list like this
1 -0.1
1 0
1 0.1
2 0
2 0.2
2 -0.2
How... (10 Replies)
Hi,
My input files is like this
axis1 0 1 10
axis2 0 1 5
axis1 1 2 -4
axis2 2 3 -3
axis1 3 4 5
axis2 3 4 -1
axis1 4 5 -6
axis2 4 5 1
Now, these are my following tasks
1. Print a first column for every two rows that has the same value followed by a string.
2. Match on the... (3 Replies)
Good evening
I have the below requirements, as I am not an experts in Linux/Unix and am looking for your ideas how I can do this.
I have file called file1 and file2.
I need to get the second column which is text1_random_alphabets and find that in file 2, if it's exists then print the 3rd... (4 Replies)
Hi,
I have 2 csv files.
a.csv
HUAWEI,20LMG011_DEKET_1296_RTN-980_IDU-1-11-ISV3-1(to LAMONGAN_M),East_Java,20LMG011_DEKET_1296_RTN-980_IDU-1,20LMG011,20LMG
027_1287_LAMONGAN_RTN980_IDU1,20LMG027,1+1(HSB),195.675,20LMG011-20LMG027,99.9995,202.6952012... (7 Replies)
Discussion started by: tententen
7 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)