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分享shell问题！求教！
#!/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？
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？
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dreamhunter_lan 2012-03-11
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貌似字符串比较没空格的话就当赋值了
Arnold9009 2012-03-11
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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
koala0923 2012-03-11
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[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。
#!/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。
jialejiahi 2012-03-10
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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
qq120848369 2012-03-10
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= 两边留个空格
