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#!/usr/bin/perl  -w

...
print "$val2[1] \n";
}
close CMD

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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.