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# tar.xz
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- 将文件夹xxx压缩成tar.xz格式
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```shell
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tar -cvf xxx.tar xxx # 生成xxx.tar文件
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xz -z -k 8 xxx.tar # 生成xxx.tar.xz文件, 耗时较长，压缩效率高
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tar -Jcvf xxx.tar.xz xxx
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```
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- 解压缩tar.xz文件
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```shell
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tar -xvjf xxx.tar.xz
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```
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- 拆分大文件
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```shell
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split -b 50M -d -a 2 xxx.tar.xz xxx.tar.xz.
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```
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- 合并文件
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```shell
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cat xxx.tar.xz.* > xxx.tar.xz
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```
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# tar.bz2
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- 将文件夹xxx压缩成tar.bz2格式
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```
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tar -jcvf xxx.tar.bz2 xxx
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```
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- 解压bz2
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```
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tar -jxvf xxx.bz2
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```
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