I have a text file containing
/database/sp/NTR_Vlr_Upload.sql
/database/tables/StatsTables.sql
/mib/ntr.mib
/mib/ntr.v2.mib
/scripts/operations/ntr/IMSITracer.ph
i want the last field after "/" removed like
/database/sp/
/database/tables/
/mib/
/mib/ ... (4 Replies)
my script gives 10 outputs continuously..In each output i have to remove the first line in the output.How to do that.
for eg : below is my output
0.00
1.00
5.00
0.00
7.00
i have to remove the first line of this output ie;0.00 (3 Replies)
Hi,
I have 3 lines in a text file that is similar to this (as a result of a diff between 2 files):
35,36d34
< DATA.EVENT.EVENT_ID.s = "3661208"
< DATA.EVENT.EVENT_ID.s = "3661208"
I am trying to get it down to just this:
DATA.EVENT.EVENT_ID.s = "3661208"
How can I do this?... (11 Replies)
I'm appending header and trailer record for a binary file using
echo "$header" > filename
cat oldfilename >> filename
echo "$trailer" >> filename
The echo is introducing newline character after header and trailer.Please let me know is there any possibility to get rid of newline character. (2 Replies)
Hi, I searched the forums but could not find anything that was very useful. I am trying to remove the very last line from a file and display the rest of the file.
Is there a way to use cut and tail together? Any other suggestions? Thanks (8 Replies)
Hi All,
I have a line like this
" field1;field2;field3 " (single space after and before double quotes).
Now i have to remove these single space . Kindly help me.
Thanks in advance (2 Replies)
Hello ,
I got a text file like that with many same line
main/a/antlr/
main/a/apache2/
main/a/app-install-data-ubuntu/
main/a/apparmor/
main/a/apport/
main/a/apport/
main/a/apport/
main/a/apport/
main/a/apr-util/
main/a/apr-util/
main/a/apt/
main/a/apt/
main/a/apturl/the output... (1 Reply)
Hey everyone, I kinda new to shell programming and learning bits and pieces of stuff from tutorials.
I got this problem, where I asked my user to enter a string, which will delete a specific line in the string, which I'm unable to do it.
Text file(BookDB.txt) as shown:
Three Little... (4 Replies)
So, I've been working on a project which takes layer 7 metadata from pcap dumps and archives it. However, there is a lot of dataless information that I don't want in my output. I know of ways to produce the output I want from the input file below, but I want a method of doing this, regardless of... (2 Replies)
Hi all,
Please help me to remove first and last character of each line in a file.
Thanks,
Baski (5 Replies)
Discussion started by: baskivs
5 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)