i try to get the year and month values using the below shell script
when i enter the script like this
#!/usr/bin/ksh
dd=`DATE +%Y%M`
echo $dd
it is showing the error as shown below
abc.ksh: DATE: not found
any suggestions please (3 Replies)
Date of Request: 20080514 10:37 Submitted By: JPCHIANG
i want to get the value "JPCHIANG" only in read a file, however, when i do this:
name=`"$line"|cut -d " " -f8`
it display all the line and append 'not found' at the end of the statement
the $line is actually a variable in a... (2 Replies)
I need to do something like this:
for i in 1 2 3 4 5; do
arr=$(awk 'NR="$i" { print $2 }' file_with_5_records)
done
That is, parse a file and assign values to an array in an ascending order relative to the number of record in the file that is being processed on each loop.
Is my... (2 Replies)
Hi
I am new to shell scripting and i am preparing a script.
for now i am work on a sub part of it..but i am unable to make it work.
---
the test code that i am working on
--------------------------
IFS=""
Sample_eve=`psg proc_s | grep tY`
n=0
for line in $Sample_eve... (41 Replies)
Hi Guru`s,
I have to write a prog. which will traverse through diff. directories and then extract some data from files. I have written it and its working fine.
But I have tested it in 1 folder.
There are many folders and I need to loop through each of them. I am not sure abt the... (4 Replies)
I wnat to assign a set of values to a variable
and
use it in if condition.
for example:
i=$1
d=1 2 3 4 5 6
if
then
echo "Fine"
else
echo "Check"
fi
i will either of the value in d, i.e. i can be 1 or 2 or any value in d, How this can be done?
Thanks in advance (2 Replies)
I have a situation where my variable needs to pick up any of the 4 values from the environment it is in
for e.g i am on server named a
server=a (script running on this server)
ftp servers= b c d e ----- the parameter passed should be any of these values in these 4 values, if not throw an... (4 Replies)
Hi,
I have a variable which stores file names as a result of find command. I need to delete all these files one by one, i.e. by a loop. Can anyone tell me how can it be done?
The variable f2d has the file names like these
abc.txt
bcd.txt
fff.txt
gef.txt
Now I have used a loop as... (12 Replies)
Hi All,
Is it possible to grep for two files and assign their names to two separate variables with for loop? I am doing the below currently:
if
then
for fname in $( cd $dirA ; ls -tr | grep "^Ucountry_file$")
do
InFile=$dirA/$fname
... (4 Replies)
Hello,
Need a small help to execute below script.
#!/bin/bash
. new.txt
for no in 3 4
do
echo $((uname_$no))
done
new.txt contains
uname_1="XXXXXX"
uname_2="YYYYY"
uname_3="ZZZZZ"
......... (6 Replies)
Discussion started by: prasanna2166
6 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)