I have a file xyz.erl which contains a function fun1.I want want to call it from linux script.Any pointers?
我有一个文件xyz。erl包含函数fun1。我想从linux脚本中调用它。指针吗?
1 个解决方案
#1
3
You can create escript from your file. Follow the instructions
您可以从您的文件创建escript。按照说明
In brief, you should add call instructions for the shell and erlang to the begginig of you file
简而言之，您应该在文件的“乞丐”中添加shell和erlang的调用指令
#!/usr/bin/env escript
%% -*- erlang -*-
Then make file executable.
然后文件执行。
Then you can call erlang script as conventional script. Note that you still required Erlang runtime installed to execute script.
然后您可以调用erlang脚本作为常规脚本。注意，仍然需要安装Erlang运行时来执行脚本。
Erlang calls main/1 function of the script but you can pass function name as an argument to call it
Erlang调用脚本的main/1函数，但可以将函数名作为参数传递给它
main([Fun]) ->
FunAtom = list_to_atom(Fun),
?MODULE:FunAtom().
#1
3
You can create escript from your file. Follow the instructions
您可以从您的文件创建escript。按照说明
In brief, you should add call instructions for the shell and erlang to the begginig of you file
简而言之，您应该在文件的“乞丐”中添加shell和erlang的调用指令
#!/usr/bin/env escript
%% -*- erlang -*-
Then make file executable.
然后文件执行。
Then you can call erlang script as conventional script. Note that you still required Erlang runtime installed to execute script.
然后您可以调用erlang脚本作为常规脚本。注意，仍然需要安装Erlang运行时来执行脚本。
Erlang calls main/1 function of the script but you can pass function name as an argument to call it
Erlang调用脚本的main/1函数，但可以将函数名作为参数传递给它
main([Fun]) ->
FunAtom = list_to_atom(Fun),
?MODULE:FunAtom().