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# Now after reading the user inputs for updating the file as follow
my @updateInfo;
...

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

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

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