I need to compare two files with exactly same length as example: -
File1 contain 500 records with length of 640 chars of each line.
File2 contain 1500 records with length of 640 chars of each line.
I need get an output to be written in File3 which will contain 1000 records difference.
but... (4 Replies)
Need a script that manipulates a fixed length file that will compare 2 fields in that file and if they are equal write that line to a new file.
i.e. If fields 87-93 = fields 119-125, then write the entire line to a new file. Do this for every line in the file. After we get only the fields... (1 Reply)
I have two very large datasets (>100MB) in a simple vertical list format. They are of different size and with different order and formatting (e.g. whitespace and some other minor cruft that would thwart easy regex).
Let's call them set1 and set2.
I want to check set2 to see if it contains... (2 Replies)
Hi,
Can anyone help with a effective solution ?
I need to change a variable length text field (between 1 - 18 characters) to a fixed length text of 18 characters with the unused portion, at the end, filled with spaces.
The text field is actually field 10 of a .csv file however I could cut... (7 Replies)
Hello,
Is there anyway that I can align a pipe delimited text file by the maxium field length where the field is separated out by pipes for large text files with more than
100,000 rows?
So, far I have searched other forums and google about aligning text files in unix and I have noticed that... (7 Replies)
I am trying to get text from a webpage, in terminal form. So far I am:
1. getting the html for the page printed using curl (curl -s webpage.com), which is then
2. piped to awk, printing line number 29 (awk NR==29), then
3. this is where I am sort of lost. I know where in the printed line I... (7 Replies)
The awk below using the sample input would output the following: Basically, it averages the text in $5 that matches if $7 < 30 .
awk '{if(len==0){last=$5;total=$7;len=1;getline}if($5!=last){printf("%s\t%f\n", last,... (6 Replies)
Hi,
I want to compare strings length to a number but i am getting error. I want first name should be length of 8.
Please help.
#bin !/bin/bash
clear
echo -n "Enter name "
read name
IFS=_
ary=($name)
for key in "${!ary}"; do echo "$key${ary}"; done
##First name should be equal to 8... (8 Replies)
Hi,
I have a text file with sample records as
CASE ID: 20170218881083
Original presentment record for ARN not found
for Re-presentment
I want to extract the 23 digit number from this file. I thought of using grep but initially couldn't extract the required number. However, after... (16 Replies)
Discussion started by: dsid
16 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)