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     #!/usr/bin/perl
        print "Line [ ", __LINE__, " ] looks very nice\n";
        print "Line [  __LINE__ ] is taken as a string-literal\n";
       #print "Line [ @{[__LINE__}] is a syntax error\n";

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     Line [ 2 ] looks very nice.
     Line [  __LINE__ ] is taken as a string-literal.