In the following very simple ksh script example, I need to ask if func1 results equal to 4 , 

This is what I did in the example but this script does not print the "function result = 4" as I expected it to.

What do I need to change in the [[......]] in order to print the "function result = 4" 

Remark - func1 must be in the [[.....]]

```
  #!/bin/ksh

  func1()
  {
    return 4
  }

  [[ ` func1 ` = ` echo $? `  ]]  && print "function result = 4"  

```