Hello,
Below is my input file's content ( in HP-UX platform ):
ABCD120672-B21 1
ABCD142257-002 1
ABCD142257-003 1
ABCD142257-006 1
From the above, I just want to get the field of 13 characters that comes after 'ABCD' i.e '120672-B21'... . Could... (2 Replies)
Hi,
I need to extract lines based on some conditions as explained below:
File format details:
notes:
1. each set starts with AAA only
2. number of columns is fixed
3. number of rows per set may vary (as one set is upto DDD - 4 rows)
Now, if any BBB's 5th column is blank then then... (4 Replies)
I have a mail log file and I want to extract some lines belonging to one domain. For example
Input File:
Dec 12 03:15:28 postfix/smtpd: 3F481EB0295: client=unknown, sasl_method=PLAIN, sasl_username=abcd@xyz.com
Dec 12 03:22:08 postfix/smtpd: 60B56EE001D: client=5ad9b9ba.com,... (7 Replies)
This is my problem, my file (file A) contains the following information:
Now, I would like to create a file (file B) containing only the lines with 10 or more characters but less than 20 with their corresponding ID:
Then, I need to compare the entries and determine their frequency. Thus, I... (7 Replies)
Hello All,
I am here again scratching my head on pattern selection with special characters.
I have a large file having around 200 entries and i have to select a single line based on a pattern.
I am able to do that:
Code:
cat mytest.txt | awk -F: '/myregex/ { print $2}'
... (6 Replies)
I have hundreds of files to process. In each file
I need to look for a pattern then
extract value(s) from next line and then
search for value(s) selected from point (2) in the same file at a specific position.
HEADER ELECTRON TRANSPORT 18-MAR-98 1A7V
TITLE CYTOCHROME... (7 Replies)
Hi all,
I got a file that contains the following content, Actually it is a part of the file content,
Installing XYZ XYZA Image, API 18, revision 2
Unzipping XYZ XYZA Image, API 18, revision 2 (1%)
Unzipping XYZ XYZA Image, API 18, revision 2 (96%)
Unzipping XYZ XYZA Image, API 18,... (7 Replies)
I have an input file which is similar to what I have shown below.
Pattern : Data followed by two blank lines followed by data again followed by two blank lines followed by data again etc..
The first three lines after every blank line combination(2 blank lines between data) should be... (2 Replies)
I want to extract dates from the files and i have different types of files with pattern. I have list file with the patterns and want to date extract based on it in a sh script
Files in the directory :
file1_20160101.txt
file2_20160101_abc.txt
filexyz20160101.txt
list file with... (2 Replies)
Hello All,
I have multiple files in a hadoop /tmp/cloudera directory.
Filename are as follows
ABC_DATA_BAD5A_RO_F_20161104.CSV
ABC_DATA_BAD6C_VR_F_20161202.CSV
ABC_DATA_BAD7A_TR_F_20162104.CSV
ABC_DATA_BAD2A_BR_F_20161803.CSV
ABC_DATA_BAD3T_KT_F_20160106.CSV
I just need filenames... (6 Replies)
Discussion started by: prajaktaraut
6 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)