问题
I\'m attempting to get into the directory /cygdrive/c/Users/my dir/Documents:
$ DOCS=\"/cygdrive/c/Users/my\\ dir/Documents\"
$ echo $DOCS
/cygdrive/c/Users/my\\ dir/Documents
$ cd $DOCS
-bash: cd: /cygdrive/c/Users/my\\: No such file or directory
$ cd /cygdrive/c/Users/my\\ dir/Documents
(success)
When I manually type it in, the backspace does its escape character thing, but not when I use parameter expansion with the variable DOCS.
I tried other variations such as no backslash.
$ DOCS=/cygdrive/c/Users/Rahman\\ dir/Documents
$ echo $DOCS
/cygdrive/c/Users/my dir/Documents
$ cd $DOCS
-bash: cd: /cygdrive/c/Users/my: No such file or directory
or
$ DOCS=\"/cygdrive/c/Users/my dir/Documents\"
$ echo $DOCS
/cygdrive/c/Users/my dir/Documents
$ cd $DOCS
-bash: cd: /cygdrive/c/Users/my: No such file or directory
The same happens for $HOME:
$ echo $HOME
/home/my dir
cd $HOME doesn\'t work either. Quotes must be put around it.
What the heck:
$ DOCS=\"\\\"/cygdrive/c/Users/my dir/Documents\\\"\"
$ echo $DOCS
\"/cygdrive/c/Users/my dir/Documents\"
$ cd $DOCS
-bash: cd: \"/cygdrive/c/Users/my: No such file or directory
回答1:
$ cd "$DOCS"
You need to quote "$DOCS" to prevent spaces from being parsed as word separators. More often than not, variable references should be quoted.
Note that $HOME would have the same problem. The issue is coming from when the shell evaluates variable references; it's nothing to do with what variables you use or how you assign to them. It's the expansion that needs to be quoted.
$ echo $HOME
/home/my dir
This is deceptive. echo is actually echoing the two strings /home/my and dir. If you use cd or ls you'll see how it's actually working.
$ ls $HOME
ls: cannot access /home/my: No such file or directory
ls: cannot access dir: No such file or directory
$ cd $HOME
bash: cd: /home/my: No such file or directory
$ cd "$HOME"
<success!>
Can I ask why it works when I manually type it in but not in a variable?
Great question! Let's examine the commands you typed:
$ DOCS="\"/cygdrive/c/Users/my dir/Documents\""
$ echo $DOCS
"/cygdrive/c/Users/my dir/Documents"
$ cd $DOCS
-bash: cd: "/cygdrive/c/Users/my: No such file or directory
The reason this doesn't work is because Bash doesn't parse quotes inside variable expansions. It does perform word splitting, so whitespace in unquoted variable expansions is taken as word separators. It doesn't parse quotes in any way, meaning you can't put double quotes inside a variable to override word splitting.
$ cd $DOCS
Because of this, cd is passed two parameters. As far as cd knows it looks like you wrote:
$ cd '"/cygdrive/c/Users/my' 'dir/Documents"'
Two parameters, with double quotes intact.
回答2:
SOLUTION:
cd "Documents and Photos"
problem solved.
The reason I'm submitting this answer is you'll find that StackOverflow is being used by every day users (not just web devs, programmers or power users) and this was the number one result for a simple Windows user question on Google.
People are becoming more tech-savvy, but aren't necessarily familiar with command line in the cases above.
回答3:
$ DOCS="/cygdrive/c/Users/my\ dir/Documents"
Here's your first problem. This puts an actual backslash character into $DOCS, as you can see by running this command:
$ echo "$DOCS"
/cygdrive/c/Users/my\ `
When defining DOCS, you do need to escape the space character. You can quote the string (using either single or double quotes) or you can escape just the space character with a backslash. You can't do both. (On most Unix-like systems, you can have a backslash in a file or directory name, though it's not a good idea. On Cygwin or Windows, \ is a directory delimiter. But I'm going to assume the actual name of the directory is my dir, not my\ dir.)
$ cd $DOCS
This passes two arguments to cd. The first is cygdrive/c/Users/my\, and the second is dir/Documents. It happens that cd quietly ignores all but its first argument, which explains the error message:
-bash: cd: /cygdrive/c/Users/my\: No such file or directory
To set $DOCS to the name of your Documents directory, do any one of these:
$ DOCS="/cygdrive/c/Users/my dir/Documents"
$ DOCS='/cygdrive/c/Users/my dir/Documents'
$ DOCS=/cygdrive/c/Users/my\ dir/Documents
Once you've done that, to change to your Documents directory, enclose the variable reference in double quotes (that's a good idea for any variable reference in bash, unless you're sure the value doesn't have any funny characters):
$ cd "$DOCS"
You might also consider giving that directory a name without any spaces in it -- though that can be hard to do in general on Windows.
回答4:
Why not put the following in your .cshrc (or .bashrc, or whatever your default shell is):
alias mydoc 'cd "/cygdrive/c/Users/my dir/Documents"'
First time you do this, you have to do
source .cshrc
to update the shell with this new alias, then you can type
mydoc
anytime you want to cd to your directory.
Laziness is the mother of invention...
回答5:
If you want to move from c:\ and you want to go to c:\Documents and settings, write on console: c:\Documents\[space]+tab and cygwin will autocomplete it as c:\Documents\ and\ settings/
回答6:
To change to a directory with spaces on the name you just have to type like this:
cd My\ Documents
Hit enter and you will be good
回答7:
try
DOCS="/cygdrive/c/Users/my\ dir/Documents";
cd "$DOCS"
回答8:
ok i spent some frustrating time with this problem too. My little guide.
Open desktop for example. If you didnt switch your disc in cmd, type:
cd desktop
Now if you want to display subfolders:
cd, make 1 spacebar, and press tab 2 times
Now if you want to enter directory/file with SPACE IN NAME. Lets open some file name f.g., to open it we need to type:
cd file\ name
p.s. notice this space after slash :)
回答9:
METHOD1: With Quotes
cd "C:/Prgram Files (x86)"
cd 'C:/Program Files (x86)'Generalised
cd 'Folder Path'
Method2: Without using Quotes
cd Program\ Files \(x86\)Generalised Whenever we want to skip next character we use blackslash
\.
For the above question:
cd /cygdrive/c/Users/my\ dir/Documents
回答10:
Cygwin has issue recognizing space in between the PC name. So to solve this, you have to use "\" after the first word then include the space, then the last name.
such as ".../my\ dir/"
$ cd /cygdrive/c/Users/my\ dir/Documents
Another interesting and simple way to do it, is to put the directory in quotation marks ("")
e.g run it as follows:
$ cd c:
$ cd Users
$ cd "my dir"
$ cd Documents
Hope it works?
回答11:
Use the backslash symbol to escape the space
C:\> cd my folder
will be
C:\> cd my\folder
回答12:
As an alternative to using quotes, for a directory you want to go to often, you could use the cdable_vars shell option:
shopt -s cdable_vars
docs='/cygdrive/c/Users/my dir/Documents'
Now, to change into that directory from anywhere, you can use
cd docs
and the shell will indicate which directory it changed to:
$ cd docs
/cygdrive/c/Users/my dir/Documents
回答13:
Instead of:
DOCS="/cygdrive/c/Users/my\ dir/Documents"
Try:
DOCS="/cygdrive/c/Users/my dir/Documents"
This should work on any POSIX system.
来源：https://stackoverflow.com/questions/18323508/how-to-cd-into-a-directory-with-space-in-the-name