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docs: clearify global vs universal variable

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shenleban tongying
2023-01-13 09:10:41 -05:00
committed by Fabian Boehm
parent 4ceb497bfb
commit 27952db9f7
2 changed files with 4 additions and 4 deletions
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doc_src/language.rst
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@@ -944,8 +944,8 @@ Variable Scope
There are four kinds of variables in fish: universal, global, function and local variables.
- Universal variables are shared between all fish sessions a user is running on one computer.
- Global variables are specific to the current fish session, and will never be erased unless explicitly requested by using ``set -e``.
- Universal variables are shared between all fish sessions a user is running on one computer. They are stored in disk and persist even after reboot.
- Global variables are specific to the current fish session. They can be erased by explicitly requesting ``set -e``.
- Function variables are specific to the currently executing function. They are erased ("go out of scope") when the current function ends. Outside of a function, they don't go out of scope.
- Local variables are specific to the current block of commands, and automatically erased when a specific block goes out of scope. A block of commands is a series of commands that begins with one of the commands ``for``, ``while`` , ``if``, ``function``, ``begin`` or ``switch``, and ends with the command ``end``. Outside of a block, this is the same as the function scope.