Hi friends :)
I am having a small problem and ur help is needed...
I have a long file from which i want to select only some portions after filtering (grep).
My file looks like :
header
xxyy
lmno
xxyy
wxyz
footer
header
abcd
xy
pqrs
footer
.
. (14 Replies)
Hi all,
I am new to awk programs.I have a file like this
vjfavhjlaf<LTEXT>aabcdfffvvbbxbcddjbv</LTEXT>fAFdfdADfd
vjfavhjlaf<LTEXT>aabcdfffvvbbxbcddjbv</LTEXT>fAFdfdADfd
vjfavhjlaf<LTEXT>aabcdfffvvbbxbcddjbv</LTEXT>fAFdfdADfd
vjfavhjlaf<LTEXT>aabcdfffvvbbxbcddjbv</LTEXT>fAFdfdADfd... (3 Replies)
Hi
I need to execute a select statement in a solaris environment with oracle database. The select statement returns number of rows of data.
I need the data to be inserted into a CSV file with proper format. For that we normally use "You have to select all your columns as one big string,... (2 Replies)
Need to sort a portion of a file in a Alphabetical Order.
Example : The user adam is not sorted and the user should get sorted. I don't want the complete file to get sorted.
Currently All_users.txt contains the following lines.
##############
# ARS USERS
##############
mike, Mike... (6 Replies)
Hi ladies and gentleman.. I have two text file with me. I need to replace one of the file content to another file if one both files have a matching pattern.
Example:
text1.txt:
ABCD 1234567,HELLO_WORLDA,HELLO_WORLDB
DCBA 3456789,HELLO_WORLDE,HELLO_WORLDF
text2.txt:
XXXX,ABCD... (25 Replies)
Hi , I want to compare first 3 columns of File A and File B and create a new file File C which will have all rows from File B and will include rows that are present in File A and not in File B based on First 3 column comparison.
Thanks in advance for your help.
File A
A,B,C,45,46... (2 Replies)
Hi, I am newbie in shell script.
I need your help to solve my problem.
Firstly, I have 2 files of csv and i want to compare of the contents then the output will be written in a new csv file.
File1:
SourceFile,DateTimeOriginal
/home/intannf/foto/IMG_0713.JPG,2015:02:17 11:14:07... (8 Replies)
Hi,
I have another problem. I want to sort another csv file by the first field.
result.csv
SourceFile,Airspeed,GPSLatitude,GPSLongitude,Temperature,Pressure,Altitude,Roll,Pitch,Yaw
/home/intannf/foto5/2015_0313_090651_219.JPG,0.,-7.77223,110.37310,30.75,996.46,148.75,180.94,182.00,63.92 ... (2 Replies)
Dear UNIX experts,
I'm a command line novice working on a Macintosh computer (Bash shell) and have neither found advice that is pertinent to my problem on the internet nor in this forum.
I have hundreds of .csv files in a directory. Now I would like to copy the subset of files that contains... (8 Replies)
Discussion started by: rcsapo
8 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)