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Merge pull request wangdoc#22 from caozhi323/master
fix: typo
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docs/variable.md

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@@ -460,7 +460,7 @@ bar:未找到
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上面例子中,`declare -p`可以输出已定义变量的值,对于未定义的变量,会提示找不到。
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如果不提供变量名,`declear -p`输出所有变量的信息。
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如果不提供变量名,`declare -p`输出所有变量的信息。
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```bash
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$ declare -p

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