无法在 shell 脚本的 for 循环中分配变量

Question

I tried to assign variable a in for-loop:我试图在for循环中分配变量a ：

#!/bin/bash

for file in `ls`
do
  a = $file
done

But when I run, it gave error:但是当我运行时，它给出了错误：

line 5: a: command not found

Why did it give error?为什么会报错？ How to assign variable a ?如何分配变量a ？

Answer 1

There can be no spaces on both sides of the equal sign when defining variables in the Shell.在 Shell 中定义变量时，等号两边不能有空格。

It should be:它应该是：

a=$file

Answer 2

You need remove spaces ie你需要删除空格，即

a = $file

must be一定是

a=$file