Hello
I am using Debain Potato and I changed the PS1. When I log in locally everythink is fine, except that when I enter a long row without hitting enter, then it word wraps automatically. And it does it not at the end of the row, it does it in the middle of the row!
It also does not writes... (7 Replies)
I know this question has come up before but I couldn't find any documentation on ksh here.
I'm trying
PS1="`whoami`@`hostname`:`pwd`> "
export PS1
in ksh but the working directory sticks at the home directory. How do I fix that? Also, how do I make the prompt bold in korn? (3 Replies)
I want to change the PS1 prompt with current time.
I want the PS1 to update for every one second.
I write a Script.
PS1='\T'
but it updates after i press enter key.I want to update without pressing enter key.
can any one help me? (0 Replies)
please advise what's wrong with this command ?
PS1="`hostname`:`who am i | cut -d " " -f1`:>>"
trying to make the PS1 prompt look like :
machine_name:username:>>
thank you (4 Replies)
Hi,
I'm using the ksh shell and I'd like to set my PS1 prompt on an AIX system to include, amongst ther things, the current time.
This was my best effort: export PS1=$(date -u +%R)'${ME}:${PWD}# '
but this only sets the time to the value when PS1 is defined and the time value doesn't... (4 Replies)
Hi
I have set PS1 in my profile as -
PS1='${LOGNAME}@${PWD}>' ; export PS1
it works fine if I am in bash/ksh shell, but as soon as i switch to bourn shell (sh) then it shows "${LOGNAME}@${PWD}>" as prompt.
It is also not working in csh.
Please help. (3 Replies)
I have given as:
PS1="Karthick>" in linux.
Now the prompt changed as:
Karthick>
Now I need to get back the default prompt .
How to achieve this?
Thanks in advance (13 Replies)
Hello I am attempting to generate a bash scrip that prompts me at loggin to change my PS1 -
However, I am running into an issue w/ the code.
#!/bin/bash
#the point of this script is to that it automates and changes my prompts every day
msg1="What do you feel like adding today :"
echo... (11 Replies)
Discussion started by: D'go
11 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)