Guys, I have an array declared this way. 
while ( <FB> ){
    chomp; 
    my($col0, $col1, $col2, $col3) = split ","; 
    push @B, [$col0, $col1, $col2, $col3];

}

[download]
I want the last value from $col0. I have tried all these examples but I could not get. https://www.perl.com/article/6/2013/3/28/Find-the-index-of-the-last-element-in-an-array/. File 
file706,010390010010,doc_01,paragraph,11
file707,010390010010,doc_01,paragraph,12
file708,010390010010,doc_01,paragraph,09
file710,010390010010,doc_01,paragraph,10
file711,010390010010,doc_01,paragraph,13
file712,010390010010,doc_01,paragraph,11
file713,010390010010,doc_01,paragraph,12
file714,010390010010,doc_01,paragraph,09
file715,010390010010,doc_01,paragraph,10
file716,010390010010,doc_01,paragraph,13
file717,010390010010,doc_01,paragraph,11
file718,010390010010,doc_01,paragraph,12
file719,010390010010,doc_01,paragraph,09
file720,010390010010,doc_01,paragraph,10
file721,010390010010,doc_01,paragraph,11
file722,010390010010,doc_01,paragraph,12
file723,010390010010,doc_01,paragraph,11
file725,010390010010,doc_01,paragraph,12
file726,010390010010,doc_01,paragraph,11
file727,010390010010,doc_01,paragraph,12
file728,010390010010,doc_01,paragraph,11
file729,010390010010,doc_01,paragraph,12
file730,010390010010,doc_01,paragraph,12

[download]
I want this value: file730

In reply to Last position of array by EBK

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