I have a data file that is arranged like this:
Marketing Ranjit Singh Eagles Dean Johnson FULL
Marketing Ken Whillans Eagles Karen Thompson FULL
Sales Peter RobertsonGolden TigersRich Gardener PART
President Sandeep Jain Wimps Ken Whillans CONT... (7 Replies)
hi everyone,
I am looking for an easy way to extract columns from a text file based on a regular expression, kind of like grep but searching and returning columns instead.
for example, suppose i have the following file, 'file.txt':
A B C D B
1 2 3 4 5
6 7 8 9 0
5 6 7 8 9
2 3 8 9 0
I... (6 Replies)
Hi,
I need to perform a grep from a file, but ignore any results from the first column.
For simplicity I have changed the actual data, but for arguments sake, I have a file that reads:
MONACO Monaco ASMonaco
MANUTD ManUtd ManchesterUnited
NEWCAS NewcastleUnited
NAC000 NAC ... (5 Replies)
Hi have a large spreadsheet which has 4 columns
APM00111803814 server_2 96085 Corp IT Desktop and Apps
APM00111803814 server_2 96085 Corp IT Desktop and Apps
APM00111803814 server_2 96034 Storage Mgmt Team
APM00111803814 server_2 96152 GWP... (6 Replies)
Trying to do a grep -v on a value in the 2nd column of text. So if the word apple appears in a line in the 2nd column, it would not show up when the file was cat. Seems like a simple enough operation but I just can't figure it out. Any help would be appreciated. Thanks in advance.
Are apples... (4 Replies)
PROL\tests_li004_developers:VAS:3543346:q34243,d3hs35,34bdf3,24sfgg,a3s234
Im trying to grep all text after VAS:3543346, so im trying to just have this
q34243,d3hs35,34bdf3,24sfgg,a3s234
Im confused on how I would do this (7 Replies)
Hello All
I have an input file with data below. I would like to grep and display the data where 3rd column contains string or at least one character. Kindly please help me with this!
Input:
tjfa3|zznpou|224fdd.34.ff3.35 |Tiv|Otj|1
fgduul7|zznikj| ... (7 Replies)
I have a file with two columns separated by white space.
Dog Cat
fido sneaky
dopey poptart
ears whisker
barky herd
Trying to list the words under the column named Dog. Tried a few variations of awk but can't... (4 Replies)
Gents
Is it possible to update the code to get the desired output files from the input list. I called variable to the first column.
I need to consider the first column as key to grep the values in the second column according to the desired request.
input list
(attached )
output1
... (12 Replies)
Discussion started by: jiam912
12 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)