如何指定调用 "erl" 命令时要使用的“.erlang”？

Question

原文.erlang包含code:add_pathz("/Users/xxxxx/Documents/Project/CY2/keyboard/ebin"). 它位于 ~/.erlang.

另一个erlang启动文件包含 code:add_pathz("/Users/xxxxx/Documents/Project/CY2/keyboard/_build/default/rel/lib/keybord/ebin").

我想指定使用哪个.erlang，可以吗？

Answer 1

根据 the docs，它不是。

When Erlang/OTP is started, the system searches for a file named .erlang in the user's home directory.

实际上……我检查了一下，虽然你不能选择不同的 .erlang，但你可以通过设置不同的来完全禁用它的执行]你的节点的主路径，像这样…

/tmp$ cat ~/.erlang
io:format("This is ~~/.erlang~n").

/tmp$ erl
Erlang/OTP 24 [erts-12.0.2] [source] [64-bit] [smp:12:12] [ds:12:12:10] [async-threads:1] [jit]

This is ~/.erlang
Eshell V12.0.2  (abort with ^G)
1>
User switch command
 --> q
/tmp$ cat /tmp/.erlang
io:format("This is NOT ~~/.erlang~n").

/tmp$ erl -home /tmp
Erlang/OTP 24 [erts-12.0.2] [source] [64-bit] [smp:12:12] [ds:12:12:10] [async-threads:1] [jit]

Eshell V12.0.2  (abort with ^G)
1>
User switch command
 --> q
/tmp$

如何指定调用 "erl" 命令时要使用的“.erlang”？

How to specify the ".erlang" to use when "erl" command is called?

erlang