how to delete/replace the the odd occurance of a pattern say newline character "\n"
a,b,c,d
e,f
g, h, i, j, k, l
m,n
1, 2, 3, 4,
5, 6
1, 3, 4, 5, 6, 7
the output should be
a,b,c,de,f
g, h, i, j, k, lm,n
1, 2, 3, 4,5, 6
1, 3, 4, 5, 6, 7 (4 Replies)
I need RegEx to delete text block delimited by "^--" and "^request saved" if the block contained the pattern "FAILED:No air,rail,hotel or car" in the following.
Many thanks in advance!
company_id=9292 queue_id=72 internationalOnly=0
Building XML...
ABC123
Adding passenger first=First ... (1 Reply)
Hello all. I am a beginner UNIX user who is using UNIX to work on a bioinformatics project for my university.
I have a bit of a complicated issue in trying to use sed (or awk) to "find and replace" bases (letters) in a genetics data spreadsheet (converted to a text file, can be either... (3 Replies)
I am under the gun on a project and am not very good at scripting. I have to make a modification to thousands of C programs to basically replace the #pragma statement. I don't want to have to do it manually. Here is an example of what I need done. Any help would be greatly appreciated.
I... (5 Replies)
Hi All.
I didnt know how to put this question as but i want to delete my values following string_X but need to retain the data in it.
I hope the following might help me in conveying my doubt.
My sequence looks like this.
>string_1 CAJW010000001... (3 Replies)
i have a large sequence of format
sat_1_g3_g_0_8540 . A 1 15501 . . . ID=sat_1_g3_g_0_8540;parentName=sat_1_g3_g_0_8540;Al=sat_1_g2_g_0_8540;
sat_1_g3_g_2_8510 . C 1 25501 . . . ... (11 Replies)
Hi All
This might be a weird query but its related to deleting specific details in database.
Bascially I had built a database using a set of files
seq1 of 300 mb
seq2 of 200 mb
seq3 of 350 mb
seq4 of 300 mb
and after building the database i realized that i didn't need the whole data.... (6 Replies)
Hi, I have the following data:
2860377|"DATA1"|"DATA2"|"65343"|"DATA2"|"DATA4"|"11"|"DATA5"|"DATA6"|"65343"|"DATA7"|"0"|"8"|"1"|"NEGATIVE"
32340377|"DATA1"|"DATA2"|"65343"|"DATA2"|"DATA4"|"11"|"DATA5"|"DATA6"|"65343"|"DATA7"|"0"|"8"|"1"|"NEG-DID"... (3 Replies)
Hi
I have a table which looks like this
id | name | length | clone | null
1 | string 1 | 12345643 | string 1 | NULL |
2 | string 2 | 2345612 | string 2 | NULL |
3 | string 3 | 3421556 | string 3 | NULL |
4 | string 4 | 1236742 | string 4 | NULL |
5 | string 5 | 2312677 | string 5 | NULL |... (2 Replies)
Discussion started by: rsi.245
2 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)