my @split = split(/\./,$file)[-1];

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That will produce a syntax error: 

$ perl -e'my @split = split(/\./,$file)[-1];'
syntax error at -e line 1, near ")["
Execution of -e aborted due to compilation errors.

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In reply to Re^4: File ext number by jwkrahn
in thread File ext number by Kirche

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