shell问题！求教！

[koala0923]

#!/bin/sh
echo "Is morning ? Please answer yes or no"
read timeof

echo $timeof
if [ "$timeof"="no" ];then
echo "Good morning"
elif [ "$timeof"="yes" ];then
echo "Good afternoon"
else
echo "Sorry, $timeof is not rencognized. Enter yes or no"
exit 1
fi
exit 0

为什么不管怎么输入都显示输出Good morning 哪里错啦？

[qq120848369]

= 两边留个空格

[jialejiahi]

主要是判断语句里面的等号两边漏下空格了。

#!/bin/sh
echo "Is morning ? Please answer yes or no"
read timeof

if [ $timeof = "yes" ];then
        echo "Good morning"
elif [ $timeof = "no" ];then
        echo "Good afternoon"
else
        echo "Sorry, $timeof is not rencognized. Enter yes or no"
fi

[koala0923]

[Quote=引用楼主 koala0923 的回复:]
#!/bin/sh
echo "Is morning ? Please answer yes or no"
read timeof

echo $timeof
if [ "$timeof"="no" ];then
echo "Good morning"
elif [ "$timeof"="yes" ];then
echo "Good afternoon"
else
ech……
[/Quote]
谢谢啊！还真是这个原因。

[Arnold9009]

对于初学者，当shell脚本执行异常的时候，首先考虑一下是不是空格的原因

[dreamhunter_lan]

貌似字符串比较没空格的话就当赋值了