本文介绍了=〜运算子附近的语法错误的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
当我运行此脚本时:
#!/bin/bash if [[ "abcd" =~ ^.*$ ]]; then echo "something" fi我得到:
./tmp2.sh: line 3: conditional binary operator expected ./tmp2.sh: line 3: syntax error near `=~' ./tmp2.sh: line 3: `if [[ "abcd" =~ ^.*$ ]]; then'我尝试了所有发现的建议,但仍然相同:/ 请帮帮我!
I've tried all suggestions I've found, but still the same:/ Help me, please!
推荐答案鉴于您看到的是 bash特定的错误消息,我们可以排除 bash 之外的 strong 以外的其他东西正在运行脚本(如果它是仅POSIX功能的外壳,例如在某些系统上为sh,则您会看到一个与[[有关的错误消息.
Given that you're seeing a bash-specific error message, we can rule out that something other than bash is running the script (if it were a POSIX-features-only shell, such as sh on some systems, you'd instead see an error message relating to [[).
最可能的解释:
- 您的 bash版本是< 3.0 ,因此不支持=~运算符.
- 要进行验证,请在脚本中运行echo $BASH_VERSION.
- Your bash version is < 3.0, and therefore doesn't support the =~ operator.
- To verify, run echo $BASH_VERSION in your script.
您看到的特定错误是bash的表达方式:我看到的字符串我不认识为运算符."
The specific error you're seeing is bash's way of saying: "I'm seeing a string I don't recognize as an operator."
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=〜运算子附近的语法错误
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