英文:
Is there a way to activate the default opam switch on shell startup?
问题
代码部分不需要翻译。以下是翻译好的部分：
"It's very tedious to have to activate the default switch every time I want to start using ocaml with eval $(opam env --switch=default --set-switch). I was given an option when I first initialized opam to update my .zshrc with a line to do this on startup but I must have missed it because the initialization continued on without my input. I tried manually adding the line to my .zshrc but the switch that's activated is not my default switch, which uses ocaml v5.0.0. Instead, it activates another switch I created with v4.14.0."
中文翻译：
"每次我想要开始使用 ocaml 时都必须激活默认的开关，这真的很烦人，使用 eval $(opam env --switch=default --set-switch)。当我首次初始化 opam 时，我被给予一个选项，可以更新我的 .zshrc，以便在启动时执行此操作，但我可能错过了它，因为初始化继续进行，没有我的输入。我尝试手动将该行添加到我的 .zshrc，但激活的开关不是我的默认开关，而是使用 ocaml v5.0.0 的另一个开关。相反，它激活了我创建的一个开关，其中使用了 v4.14.0。"
英文:
It's very tedious to have to activate the default switch every time I want to start using ocaml with eval $(opam env --switch=default --set-switch). I was given an option when I first initialized opam to update my .zshrc with a line to do this on startup but I must have missed it because the initialization continued on without my input. I tried manually adding the line to my .zshrc but the switch that's activated is not my default switch, which uses ocaml v5.0.0. Instead, it activates another switch I created with v4.14.0.
For context, the line I added to my runtime config was
[[ ! -r /Users/USERNAME/.opam/opam-init/init.zsh ]] || source /Users/USERNAME/.opam/opam-init/init.zsh > /dev/null 2> /dev/null
Maybe the answer to my question is that it's not recommended to activate a switch by default?
答案1
得分: 1
以下是翻译好的部分：
"It is generally recommended to activate a switch by default if you always want to use a specific version of a tool or language. In your case, it seems that the line you added to your .zshrc is not activating the default switch, but rather a different switch you created with version 4.14.0 of OCaml.
要始终使用特定版本的工具或语言，通常建议默认激活开关。在您的情况下，似乎您添加到.zshrc的那行代码并没有激活默认开关，而是激活了您使用OCaml版本4.14.0创建的不同开关。
To activate the default switch every time you start a new terminal session, you can add the following line to your .zshrc file:
要在每次启动新终端会话时激活默认开关，您可以将以下行添加到您的.zshrc文件：
eval $(opam env --switch=default --set-switch)
This will activate the default switch and set the environment variables for that switch. Make sure to remove any other lines that activate a different switch.
这将激活默认开关并设置该开关的环境变量。请确保删除激活其他开关的任何其他行。
After adding this line to your .zshrc file, run the following command to source your updated .zshrc file:
在将此行添加到.zshrc文件后，运行以下命令以加载更新后的.zshrc文件：
source ~/.zshrc
This should activate the default switch every time you start a new terminal session.
这将在每次启动新终端会话时激活默认开关。"
英文:
It is generally recommended to activate a switch by default if you always want to use a specific version of a tool or language. In your case, it seems that the line you added to your .zshrc is not activating the default switch, but rather a different switch you created with version 4.14.0 of OCaml.
To activate the default switch every time you start a new terminal session, you can add the following line to your .zshrc file:
eval $(opam env --switch=default --set-switch)
This will activate the default switch and set the environment variables for that switch. Make sure to remove any other lines that activate a different switch.
After adding this line to your .zshrc file, run the following command to source your updated .zshrc file:
source ~/.zshrc
This should activate the default switch every time you start a new terminal session.
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