Ok, another fun hiccup in my UNIX learning curve. I am trying to count the number of occurrences of an IP address across multiple files named example.hits. I can extract the number of occurrences from the files individually but when you use grep -c with multiple files you get the output similar to... (5 Replies)
hi Gurus,
I'm a newbie in scripting please check my script if this is correct. I think there's something wrong with it but I;m not sure. I'm trying to create multiple lines using awk from external xml files but i want to add additonal info in the data manually
Since i don't knwo how to... (0 Replies)
Hi all
I've been working on a bash script parsing through debug/trace files and extracting all lines that relate to some search string. So far, it works pretty well. However, I am challenged by one requirement that is still open.
What I want to do:
1) parse through a file and identify all... (3 Replies)
Example CSV:
$ cat myfile
HDR
COL_A,COL_B,COL_C
X,Y,Z
Z,Y,X
...
X,W,Z
In this example, I know that column names are on the second line. I also know that I would like to print lines where COL_A="X" and COL_C="Z". In this simple example, I know that COL_A = $1 and COL_C = $3, and hence... (6 Replies)
Hi,
I am having two tables. A & B
I want to know the total number of records in each table and need to store each value in some variables to process further in the code.
How it can be done ?
With Regards (2 Replies)
I use this command to find a search (Nr of active alarms are) and print one line before and 10 lines after the search keywords.
nawk 'c-->0;$0~s{if(b)for(c=b+1;c>1;c--)print r;print;c=a}b{r=$0}' b=1 a=10 s="Nr of active alarms are:" *.log
However, I would like to know how to tell it to print... (3 Replies)
this is Korn shell unix.
The scenario is I have a pipe delimited text file which needs to be customized. say for example,I have a pipe delimited text file with 15 columns(| delimited) and 200 rows. currently the 11th and 12th column has null values for all the records(there are other null columns... (4 Replies)
I am trying to redirect record to two files using nawk if-else.
#Identify good and bad records and redirect records using if-then-else
nawk -F"|" '{if(NF!=14){printf("%s\n",$0) >> "$fn"_bad_data}else{printf("%s\n",$0) >> $fn}}' "$fn".orig
"$fn".orig is the source file name
bad... (7 Replies)
Hi All,
Can someone tell me how can we create same xml tag lines based on the number of lines present in other file and replace the Name variable vaule present in other file.
basically I have this xml line
<typ:RequestKey NameType="RIC" Name="A1" Service="DDA"/>
and say I... (4 Replies)
Hello Friends,
I've been trying to calculate total number of a certain match in multiple data records files (DRs).
Let say I have a daily created folders for each day since the beginning of july like the following
drwxrwxrwx 2 mmsuper med 65536 Jul 1 23:59 20150701
drwxrwxrwx 2 mmsuper... (1 Reply)
Discussion started by: EAGL€
1 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)