i need help..!!!!
i have one big text file estimate data file size 50 - 100GB with 70 Mega Rows.
on OS SUN Solaris version 8
How i can remove first line of the text file.
Please suggest me for solutions.
Thank you very much in advance:) (5 Replies)
The file FTP'd got few breaks and the data looks like:
ABCTOM NYMANAGER
ABCDAVE NJ
PROGRAMMER
ABCJIM CTTECHLEAD
ABCPETERCA
HR
and i want the output like:
ABCTOM NYMANAGER
ABCDAVE NJPROGRAMMER
ABCJIM CTTECHLEAD
ABCPETERCAHR
can you please help me in writing the shell... (8 Replies)
I have the following situation:
a text file with 50000 string patterns:
abc2344536
gvk6575556
klo6575556
....
and 3 text files each with more than 1 million lines:
...
000000 abc2344536 46575 0000
000000 abc2344536 46575 4444
000000 abc2344555 46575 1234
...
I... (8 Replies)
Hi,
Ive spent ages trying to find an explanation for how to do this on the web, but now feel like I'm :wall:
I would like to change each occurence (there are many within my script) of the following:
to
in Vim. I know how to search and replace when it is just single lines... (2 Replies)
I have two csv files having 90K records each & each row has around 50 columns.Lets say the file names are FILE1 and FILE2. I have to compare both the files and generate a new file that has rows from FILE2 if it differs.
FILE1
-----
2001,"John",25,19901130,21211.41,Unix Forum... (3 Replies)
Hmmm I think I found the correct subforum to ask my question...
I have some text files that I prepared in vi some time ago, and now I want to open and edit them with Windows Notepad. I don't have a Unix terminal at the moment so I need to do the conversion in Windows. Is there a way to do this?... (1 Reply)
Hi all,
I have some text files that I prepared in vi some time ago, and now I want to open and edit them with Windows Notepad. I don't have a Unix terminal at the moment so I need to do the conversion in Windows. Is there a way to do this? Or just reinsert thousands of line breaks again :eek: ? (2 Replies)
Hi All,
Need an urgent solution to an issue . We have created a ksh file or shell script which generates 1 DAT file. the DAT file contains extract of a select statement .
Now the issue is , when we are executing the ksh file , the output is coimng with page breaks and line breaks .
We have... (4 Replies)
Below code extracts multiple field values from XML into array and prints all in one line.
perl -nle '@r=/(?: jndiName| authDataAlias| value| minConnections| maxConnections| connectionTimeout| name)="(+)/g and print join ",",$ENV{tIPnSCOPE},$ENV{pr
ovider},$ENV{impClassName},@r' server.xml
... (4 Replies)
Discussion started by: kchinnam
4 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)