# Now after reading the user inputs for updating the file as follow
my @updateInfo;
my @updateInfo = "$inputONE\t$inputTwo\t$inputThree";

if ( $currentData{$line} ) { print "the info exists already\n"; exit; }
else { print " your info is being saved and the file is updated\n"; exit; 

##</code><code>##

@updateInfo = join( "\t", @inputs );

##</code><code>##

if ( $currentData{$updateInfo} ) { ......