I am writing a script to search PCL output and append more PCL data to the end accordingly.
I need to remove the last 88 bytes from the string.
I have searched for a few hours now and am coming up with nothing. I can't use head or tail because the PCL output is all on one line. awk crashes on... (3 Replies)
Hi,
I have file as shown below.
abc,
def,
abc,
xyz,
I have to remove ',' from end of last line (xyz,). How can I do that with single command? Is it possible or I have to iterate through complete file to remove that?
- Malay (2 Replies)
I have a file with varying record length in it. I need to reformat this file so that each line will have a length of 100 characters (99 characters + the line feed).
AU * A01 EXPENSE 6990370000 CWF SUBC TRAVEL & MISC
MY * A02 RESALE 6990788000 Y... (3 Replies)
Hello Friends, How can I remove the last two values of this line using sed
John Carey:507-699-5368:29 Albert way, Edmonton, AL 25638:9/3/90:45900
The result should look like this:
John Carey:507-699-5368:29 Albert way, Edmonton, AL 25638 (3 Replies)
All:
Can somebody help me out with a sed command, which removes the the first occurance of ')' until the end of the line
If I have the following input
... (5 Replies)
Hi all,
using VI, can anyone tell me how to add some characters onto the end of a line where the line begins with certain charactars eg
a,b,c,.......,
r,s,t,........,
a,b,c,.......,
all lines in the above example starting with a,b,c, I want to add an x at the end of the line so the... (6 Replies)
Hello,
I have records like below that I want to remove any five characters from the end of the string before the double quotes unless it is only an asterik.
3919,5020 ,04/17/2012,0000000000006601.43,,0000000000000000.00,, 132, 251219,"*"
1668,0125 ... (2 Replies)
How can I specify special meaning characters like ^ or $ inside a regex range. e.g
Suppose I want to search for a string that either starts with '|' character or begins with start-of-line character.
I tried the following but it does not work:
sed 's/\(\)/<do something here>/g' file1
... (3 Replies)
Hello.
The token is any printable characters between 2 " .
The token is unknown, but we know that it is between 2 "
Tok 1 : "1234x567"
Tok 2 : "A3b6+None"
Tok 3 : "A3b6!1234=@"
The ligne is :
Line 1 :
"9876xABCDE"Do you have any code fragments or data samples in your post
Line 2 : ... (3 Replies)
Discussion started by: jcdole
3 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)