ln: failed to create symbolic link ‘/usr/bin/pip’: File exists

  • problem description: 
ln -s /usr/local/bin/pip3 /usr/bin/pip

in centos7, to set the soft links to such problems:

problem means that the file already exists, but after deletion, the

is still prompted

  • solution: override the previous 
ln -sf /usr/local/bin/pip3 /usr/bin/pip

-f，——强制删除已存在的目标文件