Hi Friends,
Can anyone guide me how to compute sum of column4 from the below file x using awk command? when i do using awk I'm getting sum 7482350198352648.000000 which is not accurate.
$ cat x
56,232,dfgjkhdfj,,56,anand
56,22,dfgjkhdfj,7482347823453123.97834 ,56,Khan
56,23,dfgjkhdfj, ... (6 Replies)
Hi,
Does anyone know a easy way to printf $3,$4, ... all the way to the last field in the file? I will need to modify $1 and $2 and then printf modified $1 and $2 and the rest of the fields(which are not changed).
I know I can use NF as the total number of field.
Do I use a for next statement to... (4 Replies)
Hi friends..
I am confused about awk printf option..
I have a comma separated file
88562848,21-JAN-08,2741079, -1188,-7433,TESTING
88558314,21-JAN-08,2741189, -1273,-7976,TESTING
and there is a line in my script ( written by someone else)
What is the use of command?
I guess... (10 Replies)
Hi Friends,
Scripting newb here. So I'm trying to create a geektool script that uses awk and printf to output certain fields from top (namely command, cpu%, rsize, pid and time, in that order). After much trial and error, I've pretty much succeeded, with one exception. Any process whose name... (3 Replies)
Target file contains short text (never more than 1 line) and filenames.
The format is, e.g.,:
TEXT1
filename1
TEXT2
TEXT3
filename3dddd
filename3dddd
TEXT4
filename4
TEXT5
filename5dddd
filename5dddd
filename5
where dddd is a random 4-digit whole number.
Desired output: (4 Replies)
Hi,
I am using the following code to assign a count value to a variable. But I get nothing. Do you see anything wrong here.
I am new to all this.
$CTR=`remsh $m -l $MACHINES{$m} -n cat $output | grep -v sent | grep \"$input\" | sort -u | awk '{print $5}'`;
Upto sort - u it's... (2 Replies)
Hello
Here is an easy one
Data file
12345 (tab) Some text (tab) 53.432
23456 (tab) Some longer text (tab) 933.422
34567 (tab) Some different text (tab) 29.309
I need to awk these three tab-delimited columns so that the first two are unchanged (unformatted) and the third shows two decimal... (1 Reply)
I have a very large file with more than 500,000 lines of dated events.
The first field contains the date/time in the following format:
20120727-files.files:20120727090044
where the first 8 numbers represent yyyymmdd. The last set of numbers represent yyyy/mm/dd/hh:mm:ss
I would like to... (4 Replies)
Please help me format this file:
Source file looks like this, there are three columns, separated by space. First column has varrying width:
1 248105240 W25_2013
10 248103710 W06_2013
100 248103710 W06_2013
1000 248103710 W06_2013
I need to transform the file into a fixed width per column.... (1 Reply)
Discussion started by: tamahomekarasu
1 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)