if，elif，else语句在Bash中发布 [英] if, elif, else statement issues in Bash

问题描述

我似乎无法解决以下 if 语句与 elif 和然后。请记住， printf 仍在开发中我还没有在声明中测试它，所以很可能是错误的。

I can't seem to work out what the issue with the following if statement is in regards to the elif and then. Keep in mind the printf is still under development I just haven't been able to test it yet in the statement so is more than likely wrong.

我得到的错误是：

./timezone_string.sh: line 14: syntax error near unexpected token `then'
./timezone_string.sh: line 14: `then'

声明就是这样。

if [ "$seconds" -eq 0 ];then
   $timezone_string="Z"
elif[ "$seconds" -gt 0 ]
then
   $timezone_string=`printf "%02d:%02d" $seconds/3600 ($seconds/60)%60`
else
   echo "Unknown parameter"
fi

推荐答案

elif 和之间缺少空格[：

elif[ "$seconds" -gt 0 ]

应该是

elif [ "$seconds" -gt 0 ]

---

当我看到这个问题获得了很多观点时，重要的是要指出要遵循的语法是：

---

As I see this question is getting a lot of views, it is important to indicate that the syntax to follow is:

if [ conditions ]
# ^ ^          ^

意思是<括号周围需要强>空格。否则，它将无法正常工作。这是因为 [本身是命令。

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