Hi
I have a file having 1000 rows. Now I would like to remove 10 rows from it. Plz give me the script.
Eg:
input file like
4 1 4500.0 1
5 1 1.0 30
6 1 1.0 4500
7 1 4.0 730
7 2 500000.0 730
8 1 785460.0 45
8 7 94255.0 30
9 1 31800.0 30
9 4 36000.0 30
10 1 15000.0 30... (5 Replies)
I need to delete rows based on the number of lines in a different file, I have a piece of code with me working but when I merge with my C application, it doesnt work.
sed '1,'\"`wc -l < /tmp/fileyyyy`\"'d' /tmp/fileA > /tmp/filexxxx
Can anyone give me an alternate solution for the above (2 Replies)
Hi Dude,
I am struck up with another problem,Pls help me
I am new to perl , I have little knowledge only.
The scenario is
ssenthil = rw
anilkg = rw
@group1 = rw
anilkg = rw
ssenthil = rw
i need output as below , I want to find "anilkg" and delete the preceding... (12 Replies)
each individual (row) has genotype expressed for each SNP (column)
file1.txt
1 1 A G A T G T A A A A A A A A A A A A A A A A A A A A A
2 2 G A A A A A A A A A A A A A A A A A A A A A A A A A A
3 3 A A A A A A A A A A A A A A A A A A A A A A A A A A A
4 4 G A G T A T A A A A A A A A A A A... (3 Replies)
Hi I have one file which is containing about 5000 rows and 20 columns
I will just explain about my requirement here briefly with sample file, I have attached also, please help....me..
1 28.25 36.42
5 28.26 36.42
10 28.23 36.43
15 28.22 36.43
20 28.2 36.42
25... (6 Replies)
I have an Output file which has the result
YYYY 95,77
YYYY
YYYY 95
YYYY 95
YYYY 95
YYYY 95
YYYY 95
YYYY 95
YYYY 95
YYYY 95
YYYY
YYYY
YYYY
YYYY
I would like to display the above along with a single line with above info. Final output should be
YYYY 95 (3 Replies)
I have the file sed1.txt and I need to strip the brackets (]) and content inside them only when
I have two or three letters followed by a colon.
for example,it may be any letter, not just abc
]
]
#-- cat sed1.txt
1 ] FISICA
2 ]PORTUGUES
3 ] ]MATEMATICA
4 ]]INGLES ]
5 ]QUIMICA
6... (2 Replies)
Hi All ,
I am having a file like this
INPUT FILE
###############################
addfd_mjlala kksks sksks ks
annsns_bbox_2 (sksksk ksks )
adnndn_nsns_bbox_3 (( jsjsdj sjsj )
malm_dkdm lsls lsl
mdndk_mkmd_dkd_bbox_4_kdkd
ksksk skksk_bbox_jsj_KSK ((jsjsj jsjsj )... (2 Replies)
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)