关于args和从position [1]（不是position 0）传递args的问题

Question

I am reading a commandline string from a config file (config.json) :

"execmd" : "c:\\windows\\system32\\cmd.exe /c runscript.cmd"

I want to pass this to exec.Command() - but this function requires 2 parameters:

exec.Comm*emphasized text*and (cmd, args...)

Where cmd is the first segment (cmd.exe) and args would then be every space deliminated value thereafter.

1. I am not exactly sure if I need to read the config string, and then manually split it up in an array for each space deliminator? Is there any way of converting a string into args easily?

2. How would it be possible to do something like this, where I can refer args... from an index? (the below code doesn't work, cant refer args this way)

   exec.Command (arg[0], args[1]...)

Answer 1

If the values coming it from the config file are in a format executable by shell, you're going to run into a host of problems just splitting on spaces (e.g. quoted arguments containing spaces). If you want to take in a command line that would be executable in a shell, you're going to want to have a shell execute it:

exec.Command("cmd.exe", "/c", execmd)

There is no way of "converting a string into args" because it varies from shell to shell.