how to check null value

Hi All,

 

How to find out whether the string contains null values or empty data.

 

For example : I have one scalar variable $str and now I want to check
whether it contains any data or not.

 

What I did  : If ($str eq "NULL" || $str eq " "){ print $str conatins
nothing\n";}

 

Is this correct?? Because doing as per above code , I am not getting
proper result.

 

Please help

 

Regards,

Irfan

 

• how to check null value by Irfan.Sayed
• Re: how to check null value by Lars Haugseth
• Re: how to check null value by igotux igotux