Hi,
I have this script:
awk -v va=45 '$0~va{print}' flo2
That returns: "4526745 1234 " (this is the only line of the file "flo2".
However, I would like to get "va" to match the begining of the line, so that is "va" is different than 45 (eg. 67, 12 ...) I would not have any output. That... (3 Replies)
Unix gurus,
I have a file as below, which is basically the result set obtained from a sql query on an Oracle database.
ID PROG_NAME USER_PROG_NAME
-------- --------------- ----------------------------------------
33045 INCOIN Import Items
42690 ... (3 Replies)
Hi all,
i have a data array as follows.
array=ertfgj2345
array=456ttygkd
.
.
.
array=errdjt3235
so number or elements in the array can varies depending on how big the data input is.
now i have a variable, and it is $1 (there are $2, $3 and so on, i am only interested in $1).
... (9 Replies)
i have an array call ignore. it is set up
ignore=34th56
ignore=re45ty
ignore=rt45yu
.
.
ignore=rthg34
n is a variable. I have another variable that i read from a different file. It is $2 and it is working the way i expect. array ignore read and print correct values.
in the below if... (2 Replies)
Hi,
I'm trying to compare the value in a field to the value in a variable using awk. This works:
awk '$7 == "101"'but this is what I want (and it doesn't work):
value=101
awk '$7 == "$value"'
Any help or insight on this would be great. Thanks in advance. (1 Reply)
Hello,
I am trying to redirect files to a directory by using a config file. The config files is as such:
xxxxxx,ID,PathToDirectory
xxxxxx,ID2,PathToDirectory2
and so on...
I have a variable that should match one of these IDs. I want to load this config file into an awk array, and... (2 Replies)
Can anyone help me in solving this ?
p=`date`
e=`echo $p | awk '{print $2,$3}'`
# echo $p
Wed Aug 4 12:00:08 IST 2013
but when I am echoing the value of e it is giving me with one space. As shown below:
# echo $e
Aug 4
I need this value to be exact as found in... (6 Replies)
I have a shell script (.sh) and I want to pass a parameter value to the awk command but I am getting exception, please assist.
diff=$1$2.diff
id=$2 new=new_$diff
echo "My id is $1"
echo "I want to sync for user account $id"
##awk command I am using is as below
cat $diff | awk... (2 Replies)
Hello All,
I'm working on a script that will actually read a file consisting of data like the below:(ReportID,Sub_reportID,Sub_reportName)
1,1,ABC
1,2,DEF
1,3,GHI
2,1,JKL
2,2,MNO
3,1,PQR
I want to read the Sub Report details for a Report_ID using while loop and write these values into... (6 Replies)
In the below bash I am trying to read each file from a specific directory into a variable REF or VAL. Then use those variables in an awk to compare each matching file from REF and VAL. The filenames in the REF are different then in the VAL, but have a common id up until the _ I know the awk portion... (15 Replies)
Discussion started by: cmccabe
15 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)