Linux 将目录的标题设为 bash 中的日期？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/7128392/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Making the title of a directory the date in bash?
提问by Christian
I want to make the current date into the title of a directory in /home/chris/Downloadsby using mkdirand date -I
我想/home/chris/Downloads通过使用mkdir和使当前日期成为目录的标题date -I
I tried mkdir "date -I" that gets me a folder named"date -I" Without the quotes it gives the error
我试过 mkdir "date -I" 这让我得到一个名为"date -I"的文件夹没有引号它会给出错误
mkdir: invalid option -- 'I'
Trying to make it a variable next
试图让它成为下一个变量
date= date -I
mkdir -p $date
with the -poption, it looked good, but upon inspection, the folder wasn't created.
removing -pgets me the error
使用该-p选项，它看起来不错，但经过检查，未创建文件夹。删除-p让我得到错误
mkdir: cannot create directory `/home/chris/Downloads/': File exists
and even pointing it to the entire path
甚至将它指向整个路径
date= date -I
mkdir "/home/chris/Downloads/$date"
gets me the same error as before
给我和以前一样的错误
It's not that the variable is empty, I echo'd it and the value is what I should expect, it seems to be that the value isn't substituted before the directory is created. What would be the way to get around this problem? I'm running Ubuntu 11.04 (Natty Narwhal) if that gives you any more info.
不是变量为空，我回显了它并且值是我应该期望的，似乎是在创建目录之前没有替换该值。解决这个问题的方法是什么？如果可以提供更多信息，我正在运行 Ubuntu 11.04 (Natty Narwhal)。
采纳答案by Thomas Berger
Your syntax is wrong:
你的语法错误：
mkdir -p /home/chris/downloads/$(date -I)
or
或者
mkdir -p /home/chris/downloads/`date -I`
will work
将工作
回答by Femi
Use this: backticks run the command instead of printing it out.
使用这个：反引号运行命令而不是打印出来。
mkdir `date -I`
回答by Nick
Can also try xargs (however, not sure if it's a good practice)
也可以尝试 xargs （但是，不确定这是否是一个好习惯）
date -I | xargs mkdir
