Thanks for the help, i got it to work and decided to take it step further. I'm hoping you would know what i'm doing wrong.
I would like for the user to be prompted, but if value for variable exists, display it in brackets and if user presses enter without modifying the string, the same value is used for that variable. However, in my attempt to headlock $1=$var within function and if/else statement fail with "command not found".
Output IPADDRESS: [testhost1] ./main.sh: line 23: DHCPIPADDRESS=testhost1: command not found
My code (i begin adding tempvars in attempt to debug and resolve the issue, but havenot had much luck)
Also, i'd like to fill the gap in this area, what is this concept called and where would i find more details on it? My basic google search did not yield any results, but i'm guessing my keywords arent correct.
hi
i have a function
abc
{
//from this function i am passing args to antoher function like
def a b c j k l
}
now i want to count the no of args coming to def() function and iterate over those values
is there any way to do this one
please help (2 Replies)
Hi,
I've a logging function in bourne shell, flog() which logs the first argument passed to it. How can I pass arguments to this function from a file, like
cat filename | sed '...filtering...' | flog
or
cat filename | sed '...filtering...' | xargs flog
Which did not work, after which... (3 Replies)
Hi Guys,
I am trying to pass arguments to the script i am wrinting.
When no argument is passed or wrong argument is passed, the script needs to output the way it needs to be called and exit.
Currently, when no arguments is passed, it is not getting exited but goes on assuming those... (3 Replies)
I'm putting together a script that will search my mail archives for emails that meet certain criteria and output the files to a text file.
I can manually cat that text file and pipe it into sendmail and it will work (i.e. cat /pathtofile/foo.txt | sendmail -t me@company.com)
My script sends... (7 Replies)
I need to call a function within a code with $database and $ service as the arguments How do I proceed ? and how would a function be defined and these two arguments would be used inside the function?
calc_pref_avail $database $service
Best regards,
Vishal (7 Replies)
Hello Everyone,
Is there a way i can pass the arguments as parameters or variables instead of positional arguments to a function, below i am calling the function defined in a script.
Call:
notify "Error While Generating The List File: ${GEN_PARAM_LIST9} For Feed Data Validation Errors In... (1 Reply)
Hi.
How can I create a history function? (By "read" command or so)
&
How can I configure a read command so that the arrow keys are not displayed so funny? (^[[A)
Thanks in advance. (4 Replies)
Heays
So i have that script to which i'd like to pipe (rather than just regular arguments) some data from another virtual output command.
Simplified:
echo * | script.sh
When i know how many args i expect, i can handle this simple by:
&& \
read ONE TWO && \
set ONE TWO
echo "$1 : $2... (7 Replies)
I'm reading Wicked Cool Shell Scripts. For some reason, the function pasted in below gives the error: ./inpath2: line 10: in_path()
4 {
5 cmd=$1 ourpath=$2 result=1
6 oldIFS=$IFS IFS=":"
7
8 for directory in "$ourpath"
9 do
10 if ; then
11 result=0
12 fi... (9 Replies)
I have a script that uses 2 arguments. I want to call the function part within this script using these same arguments. Below is what I came up with below script so far, any guidance would be helpful. Thank you!
cat backup.sh
#!/bin/bash
function usage {
echo "USAGE: $(basename $0)... (6 Replies)
Discussion started by: mbak
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)