运行脚本变量时找不到命令
我正在尝试创建一个简单的脚本，从而比较用户输入（bday），并将其与当前日期进行比较。
我得到的结果是[$ bday ..]找不到命令？
可以通过解释来感谢您的帮助
#!/bin/bash
echo please enter your bday YYYY-MM-DD
read bday
dates=$(date +%F)
echo $dates
if [$bday == $dates]
then
echo Happy Birthday
else
echo Happy not Birthday
fi
#strip $date of day-month-year integers only
#arrange into YYY-MM-DD
#compare the two
#date --help```
I am trying to create a simple script whereby I compare a user input (bday) and compare it with the current date in a certain format.
The result I get is that [$bday..] command not found?
Would appreciate the help on this, with an explanation
#!/bin/bash
echo please enter your bday YYYY-MM-DD
read bday
dates=$(date +%F)
echo $dates
if [$bday == $dates]
then
echo Happy Birthday
else
echo Happy not Birthday
fi
#strip $date of day-month-year integers only
#arrange into YYY-MM-DD
#compare the two
#date --help```
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您的线路缺少空格。
如果[$ bday == $ dates]在这里，shell正在搜索一个名为
的命令[$ bday不存在并引发错误。 应该是相反，如果[$ bday == $ dates]
Your line here is missing whitespace.
if [$bday == $dates]Here the shell is searching for a command named
[$bdaywhich doesn't exist and throws an error. It should instead beif [ $bday == $dates ]