linux解压zip命令到当前目录 unzip解压到指定文件夹 _知识分享

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1. 前言
通常情况下， Linux系统并不会产生zip文件，而是由用户把zip文件上传到Linux系统中，产生解压的需求。
2. 安装zip解压工具unzip
以CentOS7.5最小化安装为例，系统并没有集成unzip工具，需要额外安装
[root@zcwyou ~]# yum -y install unzip看到以下输出即代表安装成功。
Running transaction
Installing : unzip-6.0-19.el7.x86_64 1/1
Verifying : unzip-6.0-19.el7.x86_64 1/1
Installed:
unzip.x86_64 0:6.0-19.el7
Complete!

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linux安装unzip
3. 解压文件
先查看一下压缩文件
[root@zcwyou zip]# ll *.zip查询结果如下
total 4
-rw-r–r–. 1 root root 3032 Dec 4 17:14 zcwyou.zip
解压这个zcwyou.zip文件
[root@zcwyou zip]# unzip zcwyou.zip 执行过程如下：
Archive: test.zip
inflating: 333.txt
extracting: abc.txt
inflating: cisco1.txt
inflating: cisco2.txt
extracting: compress.txt
extracting: cp1.txt
extracting: cp2.txt
inflating: cut2.txt
extracting: cut.txt
extracting: diff1.txt
extracting: diff2.txt
creating: dir123/
extracting: hard123.txt
extracting: hard.txt
extracting: linux123.txt
extracting: soft.txt
extracting: test.txt

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linux使用unzip解压zip文件
可以看到，unzip程序创建了一个目录dir123/，并且解压了一些文件。目录dir123是压缩文件里的一个目录。
检查：
[root@zcwyou zip]# lltotal 40
-rw-r–r–. 1 root root 315 Nov 27 16:15 333.txt
-rw-r–r–. 1 root root 9 Nov 21 11:39 abc.txt
-rw-r–r–. 1 root root 173 Oct 13 15:24 cisco1.txt
-rw-r–r–. 1 root root 179 Oct 13 15:24 cisco2.txt
-rw-r–r–. 1 root root 0 Oct 12 14:40 compress.txt
-rw-r–r–. 1 root root 0 Oct 11 10:23 cp1.txt
-rw-r–r–. 1 root root 0 Oct 11 10:23 cp2.txt
-rw-r–r–. 1 root root 57 Oct 12 13:45 cut2.txt
-rw-r–r–. 1 root root 50 Oct 12 11:59 cut.txt
-rw-r–r–. 1 root root 9 Oct 13 14:59 diff1.txt
-rw-r–r–. 1 root root 18 Oct 13 15:00 diff2.txt
drwxr-xr-x. 2 root root 6 Dec 4 17:06 dir123
-rw-r–r–. 1 root root 0 Nov 26 17:47 hard123.txt
-rw-r–r–. 1 root root 0 Nov 26 17:47 hard.txt
-rw-r–r–. 1 root root 0 Nov 29 17:25 linux123.txt
-rw-r–r–. 1 root root 0 Nov 26 17:47 soft.txt
-rw-r–r–. 1 root root 10 Nov 19 13:33 test.txt
-rw-r–r–. 1 root root 3032 Dec 4 17:14 zcwyou.zip
发现zcwyou.zip里的文件已经被全部解压出来了，并且保留了源文件zcwyou.zip 。
解压其它例子

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检查linux解压的文件
4. 其它实用案例
4.1 把zcwyou.zip解压到目录/tmp
[root@zcwyou zip]# unzip -d /tmp zcwyou.zip4.2 解压不覆盖原有文件
[root@zcwyou zip]# unzip -n zcwyou.zip4.3 解压到指定目录不覆盖原有文件
[root@zcwyou zip]# unzip -n -d /tmp zcwyou.zip4.4 解压到指定目录并覆盖原有文件
[root@zcwyou zip]# unzip -o zcwyou.zip -d /tmp/4.5 列出压缩包内容
[root@zcwyou zip]# unzip -l zcwyou.zip4.6 查看压缩包信息，包括每个文件的压缩率和总压缩率。
[root@zcwyou zip]# unzip -v zcwyou.zipArchive: test.zip
Length Method Size Cmpr Date Time CRC-32 Name
315 Defl:N 163 48% 11-27-2018 16:15 c785bec5 333.txt
9 Stored 9 0% 11-21-2018 11:39 b202eb3a abc.txt
173 Defl:X 120 31% 10-13-2018 15:24 ddc8760a cisco1.txt
179 Defl:X 121 32% 10-13-2018 15:24 c83f3111 cisco2.txt
0 Stored 0 0% 10-12-2018 14:40 00000000 compress.txt
0 Stored 0 0% 10-11-2018 10:23 00000000 cp1.txt
0 Stored 0 0% 10-11-2018 10:23 00000000 cp2.txt
57 Defl:X 40 30% 10-12-2018 13:45 cfaa04a8 cut2.txt
50 Stored 50 0% 10-12-2018 11:59 8bdf8936 cut.txt
9 Stored 9 0% 10-13-2018 14:59 d0864923 diff1.txt
18 Stored 18 0% 10-13-2018 15:00 12be2d98 diff2.txt
0 Stored 0 0% 12-04-2018 17:06 00000000 dir123/
0 Stored 0 0% 11-26-2018 17:47 00000000 hard123.txt
0 Stored 0 0% 11-26-2018 17:47 00000000 hard.txt
0 Stored 0 0% 11-29-2018 17:25 00000000 linux123.txt
0 Stored 0 0% 11-26-2018 17:47 00000000 soft.txt
10 Stored 10 0% 11-19-2018 13:33 769b1926 test.txt
820 540 34% 17 files

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