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Merged
pull merged 2 commits into from
Jul 20, 2023
Merged

[pull] master from wangdoc:master #25

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3d520c9
docs(condition): edit test conditional statement #82
ruanyf Jul 20, 2023
c55de6c
docs: update dependencies
ruanyf Jul 20, 2023
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10 changes: 10 additions & 0 deletions docs/condition.md
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Expand Up @@ -365,6 +365,16 @@ fi

上面例子中，`test`命令内部使用的圆括号，必须使用引号或者转义，否则会被 Bash 解释。

使用`-a`连接两个判断条件不太直观，一般推荐使用`&&`代替，上面的脚本可以改写成下面这样。

```bash
if !([ $INT -ge $MIN_VAL ] && [ $INT -le $MAX_VAL ]); then
echo "$INT is outside $MIN_VAL to $MAX_VAL."
else
echo "$INT is in range."
fi
```

### 算术判断

Bash 还提供了`((...))`作为算术条件，进行算术运算的判断。
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