问题描述
我有一个简单的Erlang命令,我想通过 erl -eval
(编译erlydtl模板,如)。
I have a simple Erlang command that I want to invoke via erl -eval
(to compile erlydtl template, as described on erlydtl page).
当我从shell的交互方式工作正常,命令立即退出:
When I do it interactively from shell everything works fine and the command exits immediately:
erl -pa ebin deps\erlydtl\ebin Eshell V5.9.3.1 (abort with ^G)
1> erlydtl:compile('templates/tictactoe.dtl',tictactoe_dtl,[{out_dir,'ebin'}]).
ok
但是当我尝试通过 erl - eval
(我想从.bat文件中运行):
But when I try to do it via erl -eval
(I want to run this from .bat file):
erl -pa ebin deps\erlydtl\ebin -noshell -eval erlydtl:compile('templates/tictactoe.dtl',tictactoe_dtl,[{out_dir,'ebin'}])
然后命令执行其作业(模板被编译),但它不会退出,我需要用ctrl + c手动杀死shell进程(我在Windows下工作) 。
Then the command does its job (template is compiled) but it doesn't exit and I need to kill the shell process manually with ctrl+c (I'm working under Windows).
我只想让命令编译模板并退出。可能是什么问题?
I just want the command to compile the template and exit. What may be the problem?
更新:
一个解决方案可能会附加exit()在命令结束时调用,但是最后我会得到以下结果:
One solution may be appending exit() invocation at the end of command, but then I end up with following:
erl -pa ebin deps\erlydtl\ebin -noshell -eval erlydtl:compile('templates/tictactoe.dtl',tictactoe_dtl,[{out_dir,'ebin'}]),exit(success).
{"init terminating in do_boot",success}
Crash dump was written to: erl_crash.dump
init terminating in do_boot (success)
错误信息非常刺激,所以我仍然不喜欢这个解决方案。
The error message is very irritating, so I still don't like this solution.
推荐答案
这应该是窍门
erl -noshell -eval 'c:ls()' -eval 'init:stop()'
你必须告诉vm关闭
这篇关于Erlang:从命令行调用erl -eval永远不会退出的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!