redo works inside loops. An if isn't a loop. Wrap the whole thing in something along the lines of: 

while( 1 ) {
  ## prompt user

  if( $whatever eq 'done' ) {    
    last;
  }

  if( $whatever eq 'try again' ) {
    next;
  }
  
  ## deal with other cases
}

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In reply to Re: using redo in an if/else statement by Fletch
in thread using redo in an if/else statement by Bismark

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