Hello! I have a text file containing
some text : : : bla
other text : : : bla
any text : : : bla
containing 3 columns separated by the ':' sign.
Now i want to insert 'this' in the 2nd line after the 2nd column-deliminiter (i.e. into 3rd column), like
some text : : : bla
other text :... (1 Reply)
Dear Unix Gurus,
I have a dataset consisting of a number of uneven columns. What I would like to do is fill up the missing rows with an arbitrary text of fixed value so that all columns now have an equal number of rows.
for example, in the sample datafile below...
1.0 1.3 0.25 2.2
2.0... (2 Replies)
Hello ,
i have a text file like this
1 a1 ,AB ,AC ;AD ,EE
2 a2 ,WE ;TR ,YT ,WW
3 a3 ;AS ,UY ;RF ,YT
i want to sort this text file based on each row , and excluding 2nd column from the sorting and not taking the comma or ; into consideration in the sorting, so it will become like this... (12 Replies)
Hello everyone!
As the heading reads, I would like to sort the lines of a text file, starting at a specific column (i.e. skip the first X characters of each line).
What I’m actually trying to sort is the md5 sums file of a directory. Every time I copy a new file to that directory, I perform... (3 Replies)
Hi,
I want to insert the text 'Unknown' in 2 specific columns in a csv file (actually | separated) if the column is blank. Its always the same columns.
I have tried using sed: sed "s/||/|Unknown|/g"
but there are occasion where other fields are blank and they need to be left blank. This... (4 Replies)
I have the following data:
Dec 24 11:31:10 0000008b 9911662486 Answered Price SGD 0.003 PERIOD: 0 m 6 s
Dec 24 11:21:42 00000086 9911662486 Answered Price SGD 0.001 PERIOD: 0 m 2 s
Dec 20 15:34:28 00000004 9911662486 Answered Price SGD 0.007 PERIOD: 0 m 12 s
Dec 20 18:42:30 0000017b... (6 Replies)
Hello,
I have some problem in inserting the space for the pairs of columns.
I have the input file :
I used this code below in replacing it using space in specific column (replace space in each two columns)
sed -e "s/,/ /2" -e "s/,/ /3" inputfile
Output showed :
However, I have many... (3 Replies)
Dear all,
I am trying to sort a text file based on column 3, 10, 11 and 12. But certain column are blank for some lines. Column 3 has to be in ascending order after sorting.
Part of my input file is as follows:
CN727990 1 A01 4703 5083 73.28 - A_scaffold000011 4365605 4365985 73.28 +... (10 Replies)
Hi All,
I have 4 files in below format. I took them as an example.
File 1: Cut from position 1-4 then 6-7 then 8-14 then rest left and make them as columns in one new file. Inserting character H to the initial of all line like HCTOT.
CTOT 456787897 Low fever
CTOR 556712345 High fever... (2 Replies)
Hi,
I have a requirement where in I need to insert delimiters before the last column of the total delimiters is less than a specified number.
Say if the delimiters is less than 139, I need to insert 2 columns ( with blanks) before the last field
awk -F 'Ç' '{ if (NF-1 < 139)} END { "Insert 2... (5 Replies)
Discussion started by: arunkesi
5 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)