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README: Do give the path dynamically in the switching instructions

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Apparently this is actually a point of confusion.

Unfortunately we can't use `which` here because 1. it might not be
installed, 2. it might be trash.

So we give instructions from inside fish, and explain that they
should *typically* work.

See #10002
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Fabian Boehm 2023-09-05 22:36:09 +02:00
parent fa390334a8
commit 4f888d79ee
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README.rst
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@ -115,24 +115,21 @@ The following optional features also have specific requirements:
Switching to fish Switching to fish
~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~
If you wish to use fish as your default shell, use the following If you wish to use fish as your default shell, use the following command, from inside fish:
command:
:: ::
chsh -s /usr/local/bin/fish chsh -s (command -s fish)
``chsh`` will prompt you for your password and change your default ``chsh`` wants a full path, this will try to find where fish is installed. If that doesn't work, try to pass the path manually - it will usually be ``/usr/local/bin/fish`` if you built from source, or ``/usr/bin/fish`` if you installed a package.
shell. (Substitute ``/usr/local/bin/fish`` with whatever path fish was
installed to, if it differs.) Log out, then log in again for the changes
to take effect.
Use the following command if fish isn’t already added to ``/etc/shells`` ``chsh`` will prompt you for your password and change your default shell. Log out, then log in again for the changes to take effect.
to permit fish to be your login shell:
Use the following command if fish isn’t already added to ``/etc/shells`` to permit fish to be your login shell (e.g. if ``chsh`` complains that it "doesn't exist" or similar):
:: ::
echo /usr/local/bin/fish | sudo tee -a /etc/shells echo (command -s fish) | sudo tee -a /etc/shells
To switch your default shell back, you can run ``chsh -s /bin/bash`` To switch your default shell back, you can run ``chsh -s /bin/bash``
(substituting ``/bin/bash`` with ``/bin/tcsh`` or ``/bin/zsh`` as (substituting ``/bin/bash`` with ``/bin/tcsh`` or ``/bin/zsh`` as