HI
can any one tell me how to replace a delimiter : with another delimiter '\001' it is a non printable octal character.
thanks in adv
spandu (4 Replies)
I have a 30 column tab delimited record file. I need to extract the first 10column. The following command to cut was not working
cut -f 1-10 -d "\t" filename.
Could any one keep on this .
Thanks in Advance (4 Replies)
hi every one
plz help me
i want to search for a line contains tabspace
This is a line The should be changed
see the above line is seperated with tab space i want to replace that tab space in to # as
This is a line#The should be changed
i have tried with... (4 Replies)
Hello,
Is there a direct command to check if the delimiter in your file is a tab or a space? And how can they be converted from one to another.
Thanks,
G (4 Replies)
I have the following script working fine, and need to generate a file delimiter (with tab or special character) for Excel data import. The script will run every hour in crontab to append the new rows to the delimiter, so that I can collect the data for i.e. a week, which will give me a lot of... (0 Replies)
I have a file having the following entries:
test1 test2 test3
11 22 33
22 44 66
99 99 44
---
I want to add a column so that the above file becomes:
test1 test2 test3 notest
11 22 33 *
22 44 66 *
99 99 44 *
---
Thanks (6 Replies)
Hi,
I have two files like:
file1
chr1 40
chr1 50
chr2 10
chr2 60
file2
chr1 30
chr1 50
chr2 15
chr2 20
and want to get the difference of column 2 when column 1 is the same in both files. (4 Replies)
Dear All,
I would like to find an automatic way to add a given code which belong to a class at the end of the column , for example this is my input file:
0610009O20Rik
V$VMYB_01 310 (+) 1 0.971 v-Myb
V$EVI1_04 782 (-) 0.763 0.834 Evi-1
V$ELK1_02 1966 (-) 1 0.984 Elk-1... (4 Replies)
My file has data that looks like below:
more data.txt
I wish to display each string seperated by a delimiter :
Expected output:
I tried the below but I m not getting every split string on a new line.
#!/bin/bash
for i in `sed 's/:/\\n/g' data.txt`;
do
echo -n... (2 Replies)
Discussion started by: mohtashims
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)