keeping last record among group of records with common fields (awk)
input:
Among records from same group (i.e. with same 1st and 2nd field - separated by ";"), I would need to keep the last record (or the record with the highest number in the last field, which is the same here).
in order to get:
I think I managed to isolate records in groups by doing
but I don't know how to say "the last record". I tried with NR but it didn't really help...
Hi,
I'm trying this command - but get this error.
Do you guys have any workaround for this?
cat tf|sed 's/{//g'|sed 's/,//g'|awk '{for (i=1;i<=NF;i++) {if ($i == "OPTIME") {k = i + 2; print $i,$k}}}'
awk: record `2005 Jul 28 17:35:29...' has too many fields
record number 15
This is how... (3 Replies)
I have a file has following records
policy glb id 1233 name Permit ping from "One" to "Second" "Address1" "Any" "ICMP-ANY" permit
policy id 999251
service "snmp-udp"
exit
policy glb id 1234 name Permit telnet from "One" to "Second" "Address2" "Any" "TCP-ANY" permit
policy id 1234... (3 Replies)
Hi,
i want to generate print statement using awk.
i have 20+ and 30+ fields in each line
Now its priting only first eight fields print statement as output not all.
my record is as shown below filename
... (2 Replies)
Hi,
To be honest, I am really impressed and amazed at the pace I find solutions for un-solved coding mysteries in this forum.
I have a file like this
input1.txt
x y z 1 2 3
a b c 4 -3 7
k l m n 0 p
1 2 a b c 4
input2
x y z 9 0 -1
a b c 0 6 9
k l m 8 o p
1 2 a f x 9
Output... (9 Replies)
Dear All,
I have 2 files. If field 1, 2, 4 and 5 matches in both file1 and file2, I want to print the whole line of file1 and file2 one after another in my output file.
File1:
sc2/80 20 . A T 86 F=5;U=4
sc2/60 55 . G T ... (1 Reply)
I'm trying to compare 2 files for differences in a selct number of fields. When differnces are found it will write the whole record of the second file including appending '|C' out to a delta file. Each record will have 20 fields, but only want to do comparison of 1st 15 fields. The 1st field of... (7 Replies)
Hi all , I have two files : dblp.xml with dblp records and itu1.txt with faculty members records. I need to find out how many dblp records are related to the faculty members. More specific: I need to find out which names from itu1.txt are a match in dblp. xml file , print them and show how many... (4 Replies)
Hi Everyone,
I have below record set. File is fixed widht file
101newjersyus 20150110
101nboston us 20150103
102boston us 20140106
102boston us 20140103
I need to group record based on first 3 letters in our case(101 and 102)
and sort last 8 digit in ascending order and print only... (4 Replies)
Hi,
My input looks like that:
A|123|qwer
A|456|tyui
A|456|wsxe
B|789|dfgh
Using awk, I am trying to get:
A|123;456|qwer;tyui;wsxe
B|789|dfgh
For records with same $1, group all the $2 in a field (without replicates), and all the $3 in a field (without replicates).
What I have tried:... (6 Replies)
Discussion started by: beca123456
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)