$ sudo port -v install p7zip
動作確認
$ 7za
7-Zip (A) [64] 9.20 Copyright (c) 1999-2010 Igor Pavlov 2010-11-18
p7zip Version 9.20 (locale=utf8,Utf16=on,HugeFiles=on,4 CPUs)
Usage: 7za [...] [...]
[<@listfiles...>]
a: Add files to archive
b: Benchmark
d: Delete files from archive
〜省略〜