Hi,
Need to extract a string from one file and search the same in other files.
Ex:
I have file1 of hundred lines with no delimiters not even space.
I have 3 more files.
I should get 1 to 10 characters say substring from each line of file1 and search that string in rest of the files and get... (1 Reply)
Hi ...
I have a string variable
STR = "This is a test message"
I have a file abc.txt that I am searching for the occurence of the string STR ...
I am using the command in a script
cat abc.txt | grep $STR
It identifies each space as a seperator and prints word by word.
How to... (2 Replies)
I need to search for a specific string in a file and if this string exist I need to replace it with something else. I am not sure how I could do this, using an if statement. (2 Replies)
Hi,
I am new to unix shell scripting.
I have a requirement.
Could anyone help me writing the script for the same?
Here goes the requirement:
I have a config file let's say temp.config.
Here is the data in the config file
temp.config :
-------------
name=victor
age=42
state=texas... (5 Replies)
hello, i'm a novice on bsh scripting so thanks for any help here
basically i have a shell var $x that looks like this
> echo $x
nabc1234:!:73394:17155:Gary Mason:/home/garym:/bin/ksh
and i'm trying to keep the first 8 characters and the text from the 4th : to the 5th :
i've been trying... (9 Replies)
Hai,
How to remove the repeated 'Chr's in different sequences. In the given example, Chr19 is repeated in two samples
with the same number i.e. +52245923. How to remove one of the entry in any of the samples and to give the range for each
Chr which is -20 for minimum range value and +120 for... (1 Reply)
Hi all,
I have some data in the form of
adc|nvhs|nahssn|njadnk|nkfds
in the above data i need to write a script so thet it will append "|||" to the third occurnace in the string ..... the outout should look like
adc|nvhs|nahssn||||njadnk|nkfds
Thanks,
Firestar. (6 Replies)
Hi everyone !
suppose i'm searching for a specific string in a file so it is very easy, i use the following command
grep 'keyword' file_name
but how to search a word which is repeated maximum number of times in a file, for example in the following text i have to search a word which is... (12 Replies)
Hi i am very new to shell scripting.
I have got stuck on a portion on my script.
Problem :
I have 30 logfiles inside /home/test directory.
I need to find the string "@ended today" in all the 30 logfiles and print the name of the files which did not have this string.
i need to this by... (3 Replies)
Hi Guys,
So im trying to search for the most recent occurance of a string in the most recently updated .log file in a certain directory. The string i am searching for is a value, now if this value is greater than 800 i would like an email sent out with some text (blah blah blah).
This is what... (7 Replies)
Discussion started by: hello_world
7 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)