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firmianay committed Jan 27, 2019
2 parents 99d4109 + 2ebf5db commit 681ff36
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4 changes: 2 additions & 2 deletions doc/1.3_linux_basic.md
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## 输入输出

- 使用命令的输出作为可执行文件的输入参数
- `$ ./vulnerable 'your_command_here'`
- <code>$ ./vulnerable &#96;your_command_here&#96;</code>
- `$ ./vulnerable $(your_command_here)`
- 使用命令作为输入
- `$ your_command_here | ./vulnerable`
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...
```

使用命令 `unset` 可以清楚环境变量
使用命令 `unset` 可以清除变量

```text
unset $变量名
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