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How to determine strings length in perl?
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sort a word "system" in perl/shell without using built in functions output should be emssty
while(my($key, $value) = each(%hash) ) { print "$key => $value\n"; } my($key, $value); while(($key, $value) = each(%hash) ) { print "$key => $value\n"; } What is the different between these two code in case of "my" usage ?
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