bash Linux：非法选项读取 -a
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Linux: Illegal option read -a
提问by user3410687
I have found the answer for this question... Just want to provide some information for others, who met this problem too...
我已经找到了这个问题的答案......只是想为其他也遇到这个问题的人提供一些信息......
In my system, I got this problem because of I used the sh main.shto process my shell script and ignore the difference between "Bash" and "Shell".
在我的系统中，我遇到了这个问题，因为我使用sh main.sh来处理我的 shell 脚本并忽略了“Bash”和“Shell”之间的区别。
In order to solve this problem, you might try to change the mode into executable, by using chmod +xand using ./to execute the program.
为了解决这个问题，您可以尝试将模式改为可执行，通过使用chmod +x和使用./来执行程序。
Good luck!
祝你好运！
回答by Jahid
The error:
错误：
Illegal option read -a
was shown because you were trying to run it in a shell where the -aoption for readisn't defined.
显示是因为您试图在未定义-a选项的 shell 中运行它read。
the command chmod +x script.shhas nothing to do with it. It just merely gives the script execution permission.
命令chmod +x script.sh与它无关。它只是授予脚本执行权限。
You were trying to run the command in Bourne shell by the command sh script.shand Bourne shell readdoesn't have the -aoption for read. It's a Bash feature.
您试图通过命令在 Bourne shell 中运行该命令，sh script.sh而 Bourne shellread没有-a读取选项。这是一个 Bash 功能。
Running with ./is not quite an answer. You could say at least : run it with path_to_the_scriptbecause not every time your script will end up in the current directory.
与一起跑步./并不是一个很好的答案。你至少可以说：运行它，path_to_the_script因为不是每次你的脚本都会在当前目录中结束。
You can run it with bash main.shinstead of sh main.sh.
您可以使用bash main.sh代替sh main.sh.
