我正在使用th命令从我的
Linux shell执行Torch脚本.这个Torch脚本有两个输入参数:
th torch_script.lua input_parameter1 input_parameter2
现在我想通过Torch shell运行这个脚本.为此,我必须使用dofile命令.但在这种情况下,我不知道如何传递输入参数input_parameter1和input_parameter2.
在Torch中,如何将一些输入参数传递给dofile执行命令?
编辑:这是我正在尝试运行的代码.我无法正常运行,也许你可以告诉我原因
external_command.lua内容:
local arg = arg or {...} input_parameter = arg[1] print("input_parameter ".. input_parameter);
在shell上:
$th th> tempFunc = load "external_command.lua" th> tempFunc("try") [string "_RESULT={tempFunc("try")}"]:1: attempt to call global 'tempFunc' (a nil value) stack traceback: [string "_RESULT={tempFunc("try")}"]:1: in main chunk [C]: in function 'xpcall' /home/davide/torch/install/share/lua/5.1/trepl/init.lua:630: in function 'repl' ...vide/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:185: in main chunk [C]: at 0x004064d0
编辑2:我尝试了TonyHsu发布的解决方案,但无论如何它都无法正常工作.
这就是我正在做的事情.
我在名为runfile.lua的脚本中定义了一个函数runfile(),其中包含以下代码:
function runfile(scriptName,input) opt = nil arg = input dofile(scriptName) end
然后我使用我之前为此函数定义为scriptName输入参数的external_command.lua脚本:
th> scriptName = "external_command.lua" th> require './runfile.lua' th> runfile(scriptName,"Hello world");
不幸的是,在这种情况下,我收到一个错误:
external_command.lua:4: attempt to concatenate global 'input_parameter' (a nil value) stack traceback: external_command.lua:4: in main chunk [C]: in function 'dofile' /home/davide/torch/temp/runfile.lua:4: in function 'runfile' [string "runfile(scriptName,"Hello world");"]:1: in main chunk [C]: in function 'xpcall' /home/davide/torch/install/share/lua/5.1/trepl/init.lua:648: in function 'repl' ...vide/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:185: in main chunk [C]: at 0x004064d0
我认为诀窍是传递全局变量’args’中的参数.说,我在external_command.lua中有以下内容.
-- args has been set by the caller if not args or #args == 0 then print('no input_parameter') else print('#args = ' .. #args,'input_parameter: ' .. args[1]) end
然后按如下方式定义runfile().
function runfile(f,...) local tmp = args -- save the original global args args = table.pack(...) dofile(f) args = tmp -- restore args end
我已经测试了它.看起来像这样.
th> runfile('ext_command.lua',10) #args = 1 input_parameter: 10 [0.0002s] th> runfile('ext_command.lua','a','b','c') #args = 3 input_parameter: a [0.0002s]