Comparing two directories and then exiting from the script

[iphone]

Hi, I am trying to compare two directories with the following code but I am getting the following warning.What is wrong with the below code?

Argument "E:/perl/scripts" isn't numeric in numeric ne (!=) at orphan_check.pl line 26. Argument "Z:\\edit\\scripts" isn't numeric in numeric ne (!=) at orphan_check.pl line 26.

I am trying

if($client_root!=$cwd)
{
print "EXITING:Perforce client root donot match the current working di
+rectory";
exit;
}

[Khen1950fx]

Neither of your arguments are numeric. Just use ne:

if ($client_root ne $cwd) {
        #do something
}

[biohisham]

Argument "E:/perl/scripts" isn't numeric in numeric ne (!=) at orphan_check.pl line 26

Of course this argument is not numeric because "E:/perl/scripts" is not a number, hence you were offered the operator 'ne' instead of the one you tried to use '!='.

You have to decide whether your operand(s) is in numeric context or a string context. In Perl it makes a difference and using an operator in a context that is it not applicable could give out such warnings.

'lt, gt, le, ge, eq, ne, cmp' perform on strings similar operations performed by '<, >, <=, >=, ==, !=, <=>' respectively on numbers

On a further note, be careful with treating strings as numbers because perl can force into a number any string that has been treated that way, an example will include using the arithmetic operators on strings, they will be reinitialized to zero..

my $string = "lion";
my $result = $string + 2;
print $result;

'$string' was reinitialized to 0... These are some errors that may just be hard to detect if you chose to ignore warnings given to you..