Hi,
filenames:
contains name of list of files to search in.
placelist
contains the names of places to be searched in all files in "filenames"
for i in $(<filenames)
do
egrep -f placelist $i
if ]
then
echo $i
fi
done >> outputfile
Output i am getting: (0 Replies)
Hello,
I am new to unix and need help with a problem. I have 2 files each containing multiple columns of information ie;
File 1 :
A B C D E
1 2 3 4 5
File 2 :
F G
6 7
I would like to merge the information from File 2 to File 1 so that the data reads as follows;
File 1:
A... (4 Replies)
Hi,
I have to write one script that has to search a list of numbers in certain zipped files.
For eg. one file file1.txt contains the numbers. File1.txt contains 5,00,000 numbers and I have to search each number in zipped files(The number of zipped files are around 1000 each file is 5 MB)
I have... (10 Replies)
Hi,
I want to find for a particular word which is existing in different files and folders under the parent directory. What command can I use to retrieve all the file names which is having the word. (1 Reply)
Hello there,
I am trying to extract (string) information ( a list words) from 4 files and then put the results into 1 file. Currently I am doing this using grep -f list.txt file1 . and repeat the process for the other 3 files. The reasons i am doing that (a) I do know how to code (b) each file... (4 Replies)
Hey gyuz,
I wanna calculate the number of mapped reads of a bam file in a region of interest. I used this code to do so :
samtools view input.bam chrname:region1 > region1.txt
This will store all the reads from given bam file within the region of interest in region1.txt
Now I have... (5 Replies)
I have a list of files all over a file system e.g.
/home/1/foo/bar.x
/www/sites/moose/foo.txtI'm looking for strings in these files and want to replace each occurrence with a replacement string, e.g.
if I find: '#@!^\&@ in any of the files I want to replace it with: 655#@11, etc.
There... (2 Replies)
Hello,
I have hundreds of files in which I need to change email address. Here is what I am trying to do:
1. All text files are in a directory "a"
2. In the text file, I want to replace email address for preparer. All these lines start with {{PreparerEmail and end with }}. The email... (3 Replies)
I need to look for 3 files in a particular directory, if they are > 0kb. If files exist proceed further, if not mail out saying one of the file is missing. All the 3 files should be present.
Please see my script below and correct if needed. Anyway, it is not working.
#! /bin/bash... (13 Replies)
Im having an issue when trying to replace the first column with a new set of values in multiple files. The results from the following code only replaces the files with the last set of values in val.txt. I want to replace all the files with all the values.
for date in {1..31}
do
for val in... (1 Reply)
Discussion started by: ncwxpanther
1 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)