I have this code that I took out of Learning Perl. In this example I used the while loop to check that my input with the regular expression. However, why is it that when I take the while loop away and try alternate methods of comparing data to the regular expression it will not compile it gives me a message that says: ---use of uninitialized value in pattern match (m//) What are alternate methods of comparing a value to the regular expression in the if statement??? 
#!/usr/bin/perl -w

use strict;

#get the user input first
print "type a string: ";
while(<>){
chomp();

if(/Wilma.*Fred|Fred.*Wilma/){
print "$_\n";
}
else{
print "\n\nyour line was skipped because it did not mention Fred and W
+ilma\n\n";
}
}

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Edit by tye

In reply to Using regular expressions on user input w/o while: unitialized value by WarrenBullockIII

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