![如何确定低级文件类型?](https://linux22.com/image/107435/%E5%A6%82%E4%BD%95%E7%A1%AE%E5%AE%9A%E4%BD%8E%E7%BA%A7%E6%96%87%E4%BB%B6%E7%B1%BB%E5%9E%8B%EF%BC%9F.png)
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(1),当针对某些文件时,表示例如“Debian 二进制包(格式 2.0)”*.deb
或“OpenDocument 文本” *.odt
。我想有一种方法来确定使用什么低级类型的存档:例如它可以是阿尔对于 Debian 软件包或 ZIP 对于 OpenDocument 文件。
我怎样才能确定这一点?
答案1
使用7z
16.02或稍后使用l
p7zip 中的 (list) 选项
以下是一些输出示例:
奥特:
7z l test.odt
(..)
Scanning the drive for archives:
1 file, 20969 bytes (21 KiB)
Listing archive: test.odt
--
Path = test.odt
Type = zip
Physical Size = 20969
(..)
德布:
7z l test.deb
(..)
Scanning the drive for archives:
1 file, 47320946 bytes (46 MiB)
Listing archive: test.deb
--
Path = test.deb
Type = Ar
Physical Size = 47320946
SubType = deb
----
Path = data.tar.xz
Size = 47310792
Modified = 2017-03-09 00:04:52
Mode = -rw-r--r--
--
Path = data.tar.xz
Type = xz
Physical Size = 47310792
Method = LZMA2:26 CRC32
Streams = 1
Blocks = 1
(..)
转速:
7z l test.rpm
(..)
Scanning the drive for archives:
1 file, 80356 bytes (79 KiB)
Listing archive: test.rpm
--
Path = test.rpm
Type = Rpm
Physical Size = 80356
Headers Size = 7726
CPU = x86_64
Host OS = linux
Created = 2016-06-06 11:01:01
----
Path = test.cpio.gz
Size = 72630
Created = 2016-06-06 11:01:01
--
Path = test.cpio.gz
Type = gzip
Headers Size = 10
(..)
tgz:
7z l test.tgz
Scanning the drive for archives:
1 file, 25617349 bytes (25 MiB)
Listing archive: test.tgz
--
Path = test.tgz
Type = gzip
Headers Size = 10
(..)
非档案:
(..)
ERROR: test.sh : Can not open the file as archive