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在 Windows 下命名文件或文件夹名有空格是可以的，甚至在 Windows 和 Ubuntu 虚拟机共享的文件中也可以这么做，但是在 Ubuntu 中空格要用下划线代替，养成好习惯。Linux 会把空格当成分割符处理，无法找到文件或文件夹。

文件夹 tensorflow boy 包含空格，访问方式为 cd tensorflow\ boy、cd “tensorflow boy”、cd ‘tensorflow boy’。

strong@foreverstrong:~$ cd ForeverStrong/
strong@foreverstrong:~/ForeverStrong$ ll
total 20
drwxrwxr-x  5 strong strong 4096 Dec 22 10:28 ./
drwxr-xr-x 52 strong strong 4096 Dec 21 10:22 ../
drwxrwxr-x  2 strong strong 4096 Dec 22 10:18 tensorflow boy/
strong@foreverstrong:~/ForeverStrong$ 
strong@foreverstrong:~/ForeverStrong$ cd tensorflow\ boy/
strong@foreverstrong:~/ForeverStrong/tensorflow boy$ ll
total 8
drwxrwxr-x 2 strong strong 4096 Dec 22 10:18 ./
drwxrwxr-x 5 strong strong 4096 Dec 22 10:28 ../
strong@foreverstrong:~/ForeverStrong/tensorflow boy$ 
strong@foreverstrong:~/ForeverStrong/tensorflow boy$ cd ..
strong@foreverstrong:~/ForeverStrong$ 
strong@foreverstrong:~/ForeverStrong$ cd "tensorflow boy"
strong@foreverstrong:~/ForeverStrong/tensorflow boy$ ll
total 8
drwxrwxr-x 2 strong strong 4096 Dec 22 10:18 ./
drwxrwxr-x 5 strong strong 4096 Dec 22 10:28 ../
strong@foreverstrong:~/ForeverStrong/tensorflow boy$ 
strong@foreverstrong:~/ForeverStrong/tensorflow boy$ cd -
/home/strong/ForeverStrong
strong@foreverstrong:~/ForeverStrong$ 
strong@foreverstrong:~/ForeverStrong$ cd 'tensorflow boy'
strong@foreverstrong:~/ForeverStrong/tensorflow boy$ ll
total 8
drwxrwxr-x 2 strong strong 4096 Dec 22 10:18 ./
drwxrwxr-x 5 strong strong 4096 Dec 22 10:28 ../
strong@foreverstrong:~/ForeverStrong/tensorflow boy$

References

[1] Yongqiang Cheng, https://yongqiang.blog.csdn.net/