问题
I accidentally typed:
sudo ln -sf /usr/local/bin/python2.5/ /usr/bin/python
instead of:
sudo ln -sf /usr/local/bin/python2.5 /usr/bin/python
Now bash tells me that /usr/bin/python is not a directory whenever I run python.
ls -l /usr/bin/python gives me expectedly /usr/bin/python --> /usr/local/bin/python2.5/
Is there any safe way to remove that symbolic link to a directory (that does not exist) and replace it with a link to the intended file?
Arigato in advance if you have any ideas.
I am stuck....
回答1:
you can simply remove the link with rm :
rm /usr/bin/python
回答2:
You remove a symlink the same way you remove a regular file, even if it's a symlink to a directory. (If the target doesn't exist, it's a moot point whether it was intended to be a directory or a file.)
回答3:
this worked for me. Although I originally created the symlink following a blender tutorial http://wiki.blender.org/index.php/Dev:2.5/Doc/Building_Blender/Linux/Troubleshooting#Setting_Python_Path_in_SCons
using this command:
sudo update-alternatives --install /usr/bin/python python /your/path/to/python3.2 1
(see man page for update-alternatives for info. Terminal>man update-alternatives)
I'm curious to know how badly I've messed things up for the update-alternatives system of managing different versions of same-named software. For instance, i think scons runs on python2.7 while blender builds internally with python3.2. Will things resolve correctly still? We shall see...
来源：https://stackoverflow.com/questions/5133025/safe-way-to-remove-a-symbolic-link-to-an-non-existing-directory-for-the-python