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  1. or download this
    #!/usr/bin/perl  -w
    
    ...
    print "$val2[1] \n";
    }
    close CMD
    
  2. or download this
    74.125.235.7 
    56 
    ...
    Use of uninitialized value $val1[0] in concatenation (.) or string at 
    +./ping_linux.pl line 59, <CMD> line 6.
     
    Use of uninitialized value $val2[1] in concatenation (.) or string at 
    +./ping_linux.pl line 64, <CMD> line 6.