You can redirect the output to a file like:
If the output is 1 line you can read it in a variable like:
otherwise you have to use a loop to read the lines:
This User Gave Thanks to Franklin52 For This Post:
Hi,
I am giving a grep command, and i am getting the output. i want to store it in a variable
for eg
a = grep '12345' /dir/1/2/log.txt ( the output is number)
b= grep 'basic' /dir/1/2/log1.txt (in this case the output is character)
so how to assign the output of grep to a variable
... (1 Reply)
Hi Guys !
I am new to unix and want to find out how we can make sql statement data to shell script variable?
Any help/suggestion is greatly appreciated
-Chandra (1 Reply)
Hi,
I work in ksh88.
I have an interective script which prompts the user for the input and returns numeric value depending on the input provided. I need to call this script inside another script and then assign the resulting output the the variable.
The call like that A=`my script` obviously... (6 Replies)
greetings all,
I am have a heck of a time trying to accomplish a very simple thing. I have an array of "shortname<spaces>id" created from a dscl output. I want to assign shortname=word1 and id=word2. I have tried
shortname=$(${textArray} | awk '{print $1}') - and get 'awk : cannot open... (3 Replies)
Hi,
I'm new to the scripting world...
I want to know that how can I assign the the field value(that has multiple lines) of a .csv file to a variable???
Model of my .csv file :
1 Poppy 5
2 red 6
3 black 5
4 white 8
and so on,the list... (4 Replies)
Hi Folks,
I am trying to assign a value from the command to a dynamic variable. But I am not getting the desired output.. I am sure something is wrong so i need experts advise.
There will be multiple files like /var/tmp/server_1, /var/tmp/server_2, /var/tmp/server_3, having different server... (6 Replies)
Hi, guys, i have a script i inherited from a coworker but i'm not perl savy. The script works but i would like it to work better. I want to run this command
./ciscomgrtest.pl -r "show version" -h hosts.router
and have the script goto each router in the hosts.router file and run the command... (2 Replies)
Hi guys,
Is there a way to assign curent time to PS4 variable in ksh. My goal is to have each line produced by 'set -x' command to have a time stamp.
Here is my code:
$cat test
#!/usr/bin/ksh
export PS4="`date` "
set -x
echo "TRACE LINE ONE"
echo "I WILL SLEEP FOR 10 SEC"
sleep 10... (2 Replies)
Discussion started by: aoussenko
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)