hi all,
I am trying to extract SUBSTRINGS out of a string using ksh.
The string is "SAPR3K.FD0.FA.TJ.B0010.T050302"
I tried using
a= `expr substr $stringZ 1 2`
which is giving me a syntax error, donno why??
any ideas why its not working??
I also tried
echo "welcome" | awk '{... (3 Replies)
Hi. I want to remove a substring from a string. If I use the "tr" command, it doesn't seem to to what I want it to:
echo './somestring.dat' | tr -d './'
results in
somestringdat
I want it to remove only occurances of the string './', rather than the individual character. The result... (1 Reply)
Hi,
I am trying to separate the directory from the filename using the substring and it does not like it.
$Complete_name="C:\ABCD\Reports_Split\090308.1630"
I want $File_Name as 090308.1630
I tried using Substring function and it does not like slashes in the complete_name.
Any... (5 Replies)
Hi All,
Problem Description:
XML_REP_REQUEST=`CONCSUB "$LOGIN" "SQLAP" "$RESP_NAME" "$USRNM" WAIT="Y" "CONCURRENT" "APPLICATION_SHORT_NAME"
"CP_SHORT_NAME"`
echo Report Request: $XML_REP_REQUEST --to print value in log file
While execution the value of 'XML_REP_REQUEST' is 'Prozess... (5 Replies)
Hi Dears,
How to use variable in string location of expression ${string:index:length} to get substring from string?
I encounter error "bad substitution" when I use expression ${$var:0:5} to get first 5 characters from $var.
Could you please help me out of this? Thanks! (2 Replies)
Hi, I have 2 statements in a file
a.sh start time is Fri Jan 9 17:17:33 CST 2015
a.sh end time is Fri Jan 9 17:47:33 CST 2015
I am required to get only the time out of it. like
17:17:33 & 17:47:33
PLs suggest (21 Replies)
Hello.
First best wishes for everybody.
here is the input file ("$INPUT1") contents :
BASH_FUNC_message_begin_script%%=() { local -a L_ARRAY;
BASH_FUNC_message_debug%%=() { local -a L_ARRAY;
BASH_FUNC_message_end_script%%=() { local -a L_ARRAY;
BASH_FUNC_message_error%%=() { local... (3 Replies)
Discussion started by: jcdole
3 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)