从$ PATH macOS Mojave中删除路径

Question

I am trying to set up my new MacBook, and installed python 3.7, however realised that I would rather use python 3.6. I uninstalled python 3.7, however the python path is still in my $PATH alongside the path for python 3.6. The questions which I have seen on this topic seem to give answers which involve using export PATH which only changes the path for the current session, or say that the measure which needs to be taken depends on your system configuration and version of macOS

echo $PATH gives:

/Library/Frameworks/Python.framework/Versions/3.6/bin:/opt/local/bin:/opt/local/sbin:/Library/Frameworks/Python.framework/Versions/3.7/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:

I have already deleted the ../3.7 which is being pointed to, so would like to only have the 3.6 path in $PATH

Answer 1

Go to your home directory, cd ~ .

Open .bash_profile file. Like so,

open .bash_profile

Make changes to the path variable in the end of the file.

Save and exit.

Now close the current terminal and open new one. The changes will sustain.

Also for using python of your wish you can alias it in .bash_profile (obviously after setting PATH variable).

Like,

alias python="python3.6"

Answer 2

You may use export PATH=/Library/Frameworks/Python.framework/Versions/3.6/bin:/opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin: , but write it in the .bash_profile or the .bashrc in your user.

That is, if you are using bash.

Maybe you will find already a definition of PATH in there, so you can just change it.