D:\PerlMonks>7z l -tzip test.zip

7-Zip [64] 9.20  Copyright (c) 1999-2010 Igor Pavlov  2010-11-18

Listing archive: test.zip

--
Path = test.zip
Type = zip
Physical Size = 330

   Date      Time    Attr         Size   Compressed  Name
------------------- ----- ------------ ------------  ------------------------
2015-03-10 15:40:58 ....A           22           22  test.dat
2015-03-10 15:41:09 ....A           28           28  test2.dat
------------------- ----- ------------ ------------  ------------------------
                                    50           50  2 files, 0 folders
D:\PerlMonks>zipgetsize.pl test.zip
test.dat is 22 bytes
test2.dat is 28 bytes

D:\PerlMonks>