Hello! I am writing a program that reads a bunch of arguments from the command line,then read information from a file(passed as one of the arguments) and do some computation. The problem I am facing is when a backslash(\) is present as one of the arguments, suppose $ myprog \ abc xyz,the backslash... (2 Replies)
Hi,
I have a variable read from user input:
PROFILESROOTDIR="\\194.185.82.188\CMSRepository\EncodingProfiles"
awk -F"=" -v gr=$PROFILESROOTDIR '/ProfilesRootDirectoryFromXOEMachine/{$2=gr;}1' OFS="=" $CFGFILE > "${CFGFILE}_new"
For this awk to work properly I need to replace in the... (7 Replies)
Hi Experts,
The question may look very silly by seeing the title, but please have a look at it clearly.
I have a text file where the first 5 columns in each row were supposed to be attributes of a sample(like sample name, number, status etc) and the next 25 columns are parameters on which... (3 Replies)
Dear People,
My query is:
have a file, which looks likes this:
10 20 30 40 50
1 2 3 4 5
100 200 300 400 500
what i need is: "PRINT EACH LINE TO AN UNIQUE FILE"
desired output:
file 1
10 20 30 40 50
file 2
1 2 3 4 5 (3 Replies)
Dear all,
I am using Mac OSX, have been successfully written an awk script during the last days. I use the script to convert parts of a .dot-file into graphml code.
First question: Backslash
My .dot-code includes repeatedly the sign "\n".
I would like to search for this sign and substitute... (4 Replies)
hyper link- abc:8081/xyz/2.5.6/rtyp-2.5.6.jar
Needs to get "rtyp-2.5.6.jar" i.e character after last backslash "/"
how to do this using sed/awk??
help is highly appreciated. (7 Replies)
Hi All.
I have a file that contains some special characters and I'm trying to use AWK to search for lines between <pattern1> and <pattern2>.
As an example:
I need the lines between the line containing ' select_id="x_0 ' and the line containing the next instance of ' from '. This is a file... (5 Replies)
pointsb=`awk -v a2="$a2" -v b2="$b2" -v c2="$c2" -v yb="$yb" -v yc="$yc" \
'BEGIN { for (y=yc; y<=yb; y++) { x = a2*y*y+b2*y+c2; print x, y }; }'`
I am learning shell script. I was reading a script and got confused in this line.
I understood that awk is allowing to assign the variable.
But... (10 Replies)
Example:
I have files in below format
file 1:
zxc,133,joe@example.com
cst,222,xyz@example1.com
File 2 Contains:
hxd
hcd
jws
zxc
cst
File 1 has 50000 lines and file 2 has around 30000 lines :
Expected Output has to be :
hxd
hcd
jws (5 Replies)
Discussion started by: TestPractice
5 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)