Hi Gurus,
I have a small requirement where i want to change the color & font of some text in a file.
i have a file error.txt which will be created in the script using egrep.
After that iam adding these lines at head & tail to that file using the following code
awk 'BEGIN{print"Please... (4 Replies)
Hi all,
I was to echo Hi in Red and Bold ; and echo There is in Green and bold
I got bold to working using tput bold but i am having hard time getting the color.
Any help is appreciated,
jak (4 Replies)
Hi,
i need to print following text using echo:
/abc dir/c\
so i tried echo "/abc dir/c\
But it gives me error of Incorrect usage, i am using Hamilton cshell in windows Vista. Can any one please help me.
Thanks in advance
Sarbjit (3 Replies)
I have been configuring my .bashrc PS1 to be displayed with some nice colors and in a format that I like, however there is one thing that I cannot figure out (or know if it's even possible).
my PS1 line is as follows:
export PS1='\\u\@\\h\:\\w\n\\$ \'This makes the command and command output... (0 Replies)
Hi,
When I run:
echo "\033I see hi in color, but if I run this color is not shown, why?
(echo "\033Thanks
Israel.
---------- Post updated at 05:17 AM ---------- Previous update was at 04:43 AM ----------
DONE!!
I had to run more -v.
Thanks (4 Replies)
Hi everyone,
I have a program that produces postscript files on the fly
The color of the files produced are in black and white
I want to change the text color of postscript file as the file is being produced without having to manually go into the ps file and change it myself.
Any Ideas?... (5 Replies)
Is it possible to change the color when doing an echo?
Example, having the following command print in dark blue.
echo "Hello"
---------- Post updated at 11:50 AM ---------- Previous update was at 10:25 AM ----------
Just figured out how to do it (2 Replies)
Hello,
I am using RHEL 6.1 on VMware
I am searching for a way to change background color (not line by line color wich one can using tput command)
basically changing the color of the whole screen to white instead of the default black and changing font color to black and alos would like to... (2 Replies)
Hi this is my first post, so forgive me if what I'm requesting doesn't make sense.
I'm connecting into a Unix server via SSH and using a Korn Shell (#!/bin/ksh). The Unix server has Oracle 11g installed on it and there are a number of scripts already setup to query the Oracle database to perform... (2 Replies)
Discussion started by: KeithJ
2 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)