Can anyone help me how to write a shell script which accepts input parameter. My requirement is as follows:
I need to run a shell script with a input parameter, and inside the script i will create a file with this input parameter name.
Please help me out to create such a shell script.
... (1 Reply)
Hi,
My script expects 2 inputs and one of them is supposed to be time, I would like to check if the given input is in validate format (i.e. 16:00), could anyone help me out here? thanks! (1 Reply)
Hi,
My script takes in one input parameter($1-email id) on the command line...
The script contains something like this...
awk '$1 == 400' abc.log >def.log
mail -s subject $1 <def.log
abc.log looks something like this...
300 222 330 123 445
400 098 890 727 663
How do i make the... (3 Replies)
pdir=`pwd`
if ; then
echo current directory $pdir
ls -altr
echo
fi
for f in $*
do
# directory
if ; then
echo current directory $f
cd $f
ls -latr
echo
fi
# but you can test file/dir
# regular file only
if ; then
echo... (4 Replies)
Hi
i have a shell script which needs a string as an input parameter. How to pass the string param as an input?
In command line am running the script.
for e.g.,
a="who is a buddy?"
sh sample.sh $a
Inside the script i get this input param as $1 but only the value "who" is accepted... (12 Replies)
Dear all
Does anybody know how to pass the password as input parameter to scp or rsync in unix scripts?
I have tried echo <password> | scp filename username@<ip address>:/filepath/ .
But it does not work.
BTW, I dont want to setup ssh trust between servers in this adhoc task.
Regards,... (2 Replies)
I need write a Korn shell which accept input parameter. But this input paramter must match one of the string in an existsing file (listkeyword). Can someone one help, how this can be done ? (3 Replies)
Any good way to check if code has the required output
# /sbin/sysctl net.ipv4.icmp_echo_ignore_broadcasts
net.ipv4.icmp_echo_ignore_broadcasts = 1
/sbin/sysctl net.ipv4.icmp_echo_ignore_broadcasts | grep "= 1"
net.ipv4.icmp_echo_ignore_broadcasts = 1
What I can think of is above, and it... (16 Replies)
OS version: RHEL 6.7
myTextFile.txt file is referred within Script1.sh script,
I only execute Script1.sh and I want the input variable to be passed inside myTextFile.txt . Any idea how I can do this ?
$ cat script1.sh
cat myTextFile.txt
$ cat myTextFile.txt
$1
Requirement1.... (4 Replies)
Hi Guys,
I am having a script file where in getting input parameter as string. I need to assign the variable but not able to achieve
#!/bin/bash
input=$1
replace=string_$input_string2
echo $replace
I am getting but should get string_<input_value>_string2
string_ (1 Reply)
Discussion started by: rohit_shinez
1 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)