将 Bash 脚本 cd 到路径名中有空格的目录
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Bash script to cd to directory with spaces in pathname
提问by
I'm using Bash on macOS X and I'd like to create a simple executable script file that would change to another directory when it's run. However, the path to that directory has spaces in it. How the heck do you do this? This is what I have...
我在 macOS X 上使用 Bash，我想创建一个简单的可执行脚本文件，该文件在运行时会更改到另一个目录。但是，该目录的路径中有空格。你是怎么做到的？这就是我所拥有的...
Name of file: cdcode
文件名： cdcode
File contents:
文件内容：
cd ~/My Code
Now granted, this isn't a long pathname, but my actual pathname is five directories deep and four of those directories have spaces in the path.
现在当然，这不是一个长路径名，但我的实际路径名有五个目录深，其中四个目录在路径中有空格。
BTW, I've tried cd "~/My Code"and cd "~/My\ Code"and neither of these worked.
顺便说一句，我已经试过cd "~/My Code"与cd "~/My\ Code"和这些都不奏效。
回答by derobert
When you double-quote a path, you're stopping the tilde expansion. So there are a few ways to do this:
当您双引号路径时，您正在停止波浪号扩展。所以有几种方法可以做到这一点：
cd ~/"My Code"
cd ~/'My Code'
The tilde is not quoted here, so tilde expansion will still be run.
这里没有引用波浪号，所以波浪号扩展仍然会运行。
cd "$HOME/My Code"
You can expand environment variables inside double-quoted strings; this is basically what the tilde expansion is doing
您可以在双引号字符串中扩展环境变量；这基本上就是波浪号扩展所做的
cd ~/My\ Code
You can also escape special characters (such as space) with a backslash.
您还可以使用反斜杠转义特殊字符（例如空格）。
回答by user365757
回答by Andrew Flanagan
cd ~/My\ Code
seems to work for me... If dropping the quotes but keeping the slash doesn't work, can you post some sample code?
似乎对我有用......如果删除引号但保留斜杠不起作用，你能发布一些示例代码吗？
回答by Jonathan Leffler
You can use any of:
您可以使用以下任何一种：
cd ~/"My Code"
cd ~/M"y Code"
cd ~/My" Code"
You cannot use:
您不能使用：
cd ~"/My Code"
The first works because the shell expands ~/ into $HOME/, and then tacks on My Code without the double quotes. The second fails because there isn't a user called '"' (double quote) for ~"to map to.
第一个有效，因为 shell 将 ~/ 扩展为 $HOME/，然后在没有双引号的情况下添加我的代码。第二个失败，因为没有名为 ' "' （双引号）的~"用户映射到。
回答by HanniBaL90
After struggling with the same problem, I tried two different solutions that works:
在遇到同样的问题后，我尝试了两种不同的解决方案：
1. Use double quotes ("") with your variables.
1.""对变量使用双引号 ( )。
Easiest way just double quotes your variables as pointed in previous answer:
最简单的方法只是双引号你的变量，如前面的答案所指出的：
cd "$yourPathWithBlankSpace"
2. Make use of eval.
2.利用eval。
According to this answer Unix command to escape spacesyou can strip blank space then make use of eval, like this:
根据this answer Unix命令转义空格，您可以去除空格然后使用eval，如下所示：
yourPathEscaped=$(printf %q "$yourPathWithBlankSpace")
eval cd $yourPathEscaped
回答by Ry4an Brase
A single backslash works for me:
一个反斜杠对我有用：
ry4an@ry4an-mini:~$ mkdir "My Code"
ry4an@ry4an-mini:~$ vi todir.sh
ry4an@ry4an-mini:~$ . todir.sh
ry4an@ry4an-mini:My Code$ cat ../todir.sh
#!/bin/sh
cd ~/My\ Code
Are you sure the problem isn't that your shell script is changing directory in its subshell, but then you're back in the main shell (and original dir) when done? I avoided that by using . to run the script in the current shell, though most folks would just use an alias for this. The spaces could be a red herring.
您确定问题不在于您的 shell 脚本正在更改其子 shell 中的目录，而是在完成后返回主 shell（和原始目录）？我通过使用 . 在当前 shell 中运行脚本，尽管大多数人只会为此使用别名。这些空间可能是一个红鲱鱼。
回答by Chris F.A. Johnson
Avoid ~ in scripts; use $HOME instead.
避免在脚本中使用 ~；改用 $HOME。
回答by Mayukh Datta
The very simple way of doing this is-
这样做的非常简单的方法是——
$ cd My\ Folder
In bash, run DIR command and in the results you would see that the folder or path names having space between them has been written in the results like this -
在 bash 中，运行 DIR 命令，在结果中您会看到在结果中写入了文件夹或路径名称之间有空格的名称，如下所示 -
$dir
My\ Folder
New\ Folder
回答by Alterlife
When working under Linux the syntax below is right:
在 Linux 下工作时，以下语法是正确的：
cd ~/My\ Code
cd ~/My\ Code
However when you're executing your file, use the syntax below:
但是，当您执行文件时，请使用以下语法：
$ . cdcode
$ . cdcode
(just '.' and not './')
（只是 '.' 而不是 './'）
回答by Bobo
use double quotes
使用双引号
go ()
{
cd "$*"
}
