Dear all,
I have two files in UNIX File1 and File2 as below:
File1:
1,1234,.,67.897,,0
1,4134,.,87.97,,4
0,1564,.,97.8,,1
File2:
2,8798,.,67.897,,0
2,8879,.,77.97,,4
0,1564,.,97.8,,1
I want to do the following:
(1) Make sure that both the files have equal number of columns and if... (1 Reply)
Dear all,
I have two files in UNIX File1 and File2 as below:
File1:
1,1234,.,67.897,,0
1,4134,.,87.97,,4
0,1564,.,97.8,,1
File2:
2,8798,.,67.897,,0
2,8879,.,77.97,,4
0,1564,.,97.8,,1
I want to do the following:
(1) Make sure that both the files have equal number of columns and if... (4 Replies)
I have two files file1 and file 2
both are having multiple coloumns.i want to select only two columns.
i used following code to get the desired columns,with ',' as delimiter
cut -d ',' -f 1,2 file1 | sort > file1.new
cut -d ',' -f 1,2 file2 | sort > file2.new
I want to get the coloums... (1 Reply)
Hey,
I have 2 files that have a name and then a number:
File 1:
dog 21
dog 24
cat 33
cat 27
dog 76
cat 65
File 2:
dog 109
dog 248
cat 323
cat 207
cat 66 (2 Replies)
Hi,
I have two files with the same number of columns. Basically I want to print the 2 columns that match between the two files.
File1 looks like this:
dr12 12 6 abn
dr14 12 7 abn
File2 looks something like this:
dr12 12 8 abn
dr12 14 7 abn
So basically if the first... (1 Reply)
Hi,
I have two files. File1.txt has 2 columns and looks like:
458739 122345
4456 122657
34200 122600
File2.txt has many columns with column 1 the same as column2 of File1.txt, but with lot more rows:
122786 abcdefg user1@email
122778 uuhjeufh user2@email... (1 Reply)
Hello,
I have two files as 1.txt and 2.txt with number as columns.
1.txt
0 53.7988
1 -30.0859
2 20.1632
3 14.2135
4 14.6366
5 -37.6258
.
.
.
31608 -8.57333
31609 -2.58554
31610 -24.2857
2.txt (1 Reply)
Hi,
i've a .csv file with the data as below: -
file1.h, 2.0
file2.c, 3.1
file1.h, 2.5
file3.c, 3.3.3
file1.h, 1.2.3
I want to remove the duplicate file names considering only the one with the highest version number..
output should be
file1.h, 2.5
file2.c, 3.1
file3.c,... (3 Replies)
I have two files. One a small one and another one is big. The smaller one look like this:
Filename: 1.tmp
3453 0
326543 1
2321 0
3212 1
The big file looks like this:
Filename 1.res
0.3232 2321
9.2922 123
0.983 3212
8.373 326543
0.9 3453
1.098 3432
I want to extract those lines... (2 Replies)
Hi,
I have a single-column file1 having records like:
00AB01/11
43TG22/00
78RC09/34
......
......
and a second file , file 2 having two columns like
78RC09/34 1
45FD11/11 2
00AB01/11 3
43TG22/00 4
......
...... (8 Replies)
Discussion started by: amarn
8 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)