variable integer
 

Is there any command which checks whether a variable is an integer.

I don't want to write a function for this. Is there an inbuilt command that can verify if a variable is integer.

It'd help if you let us know what programming language you are using for ur application!
:)

Linux

For Java

You can try


boolean isVarAnInt = false
try {

Integer temp = new Integer(variableName);
if (temp.intValue() > 0 || temp.intValue() < 0 || temp.intValue() == 0) {
System.out.println("Input Variable Is An Integer");
isVarAnInt = true;
}

} catch (NumberFormatException err) {
System.out.println("Input Variable Is Not An Integer");
}



I haven't compiled the above code. So, there might be some small syntax issues that you might need to fix using ur IDE.

oh sorry. I am using korn shell.

A check something similar to

See this thread http://www.linuxquestions.org/questi...n-bash-279227/
In short, no, not like that.