Hi, I have two input files.
File1:
ID Name Place
1-234~name1~Newyork
1-34~name2~Boston
1-2345~name3~Hungary
File1 is a variable length file where each column is seperated by delimitter "~".
File2:
ID Country
1-34<<11 SPACES>>USA<<7 spaces>>
1-234<<10 SPACES>>UK<<8... (5 Replies)
Col1 Col2 Col3 Col4
12 Completed 08 0830
12 In Progress 09 0829
11 For F U 07 0828
Considering the file above, how could i replace the third column the most efficient way? The actual file size is almost 1G. I am... (10 Replies)
Hi, Iam new to unix. I have one input file .
Input file :
ID1~Name1~Place1
ID2~Name2~Place2
ID3~Name3~Place3
I need output such that only first column should change to fixed width column of 15 characters of length.
Output File:
ID1<<12 spaces>>Name1~Place1
ID2<<12... (5 Replies)
Dear friends,
Below is my program and current output. I wish to have 3 or 4 column output in order to accomodate in single page. i do have subsequent command to process after user enter the number.
Program
COUNT=1
for MYDIR in `ls /`
do
VOBS=${MYDIR}
echo "${COUNT}. ${MYDIR}"
... (4 Replies)
Hi,
How to output the duplicate record to another file. We say the record is duplicate based on a column whose position is from 2 and its length is 11 characters.
The file is a fixed width file.
ex of Record:
DTYU12333567opert tjhi kkklTRG9012
The data in bold is the key on which... (1 Reply)
Hi,
I have a fixed width text file without any header row. One of the columns contains a date in YYYYMMDD format.
If the original file contains 3 dates, I want my shell script to split the file into 3 small files with data for each date.
I am a newbie and need help doing this. (14 Replies)
I have a fixed with file with header & trailer length having the same length of the detail record file.
The details record length of this file is 24, for Header and Trailer the records will be padded with spaces to match the record length of the file
Currently I am adding 3 spaces in header... (14 Replies)
hi,
i have a fixed width file with multiple columns and need to print data using awk command.
i use: awk -F "|" '($5 == BH) {print $1,$2,$3}' <non_AIM target>.txt for a delimiter file.
but now i have a fixed width file like below:
7518 8269511BH 20141224951050N8262
11148 8269511BH... (5 Replies)
Hi All,
I am trying to select the rows in a fixed width file based on values in the columns.
I want to select only the rows if column position 3-4 has the value AB
I am using cut command to get the column values. Is it possible to check if cut -c3-4 = AB is true then select only that... (2 Replies)
Discussion started by: ashok.k
2 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)