douzhi2012
2017-03-31 08:23
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如何使用Golang在特定文件夹中运行Shell命令?

I can use this out, err := exec.Command("git", "log").Output() to get an output of the command which will run in the same path as the executable location.

How do I specify in which folder I want to run the command?

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我可以使用此 out,err:= exec.Command(“ git”,“ log”) .Output()获取将在与可执行位置相同的路径中运行的命令的输出。

如何指定要在哪个文件夹中运行 命令?

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  • douxia6554 2017-03-31 08:26
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    exec.Command() returns you a value of type *exec.Cmd. Cmd is a struct and has a Dir field:

    // Dir specifies the working directory of the command.
    // If Dir is the empty string, Run runs the command in the
    // calling process's current directory.
    Dir string
    

    So simply set it before calling Cmd.Output():

    cmd:= exec.Command("git", "log")
    cmd.Dir = "your/intended/working/directory"
    out, err := cmd.Output()
    

    Also note that this is specific to git command; git allows you to pass the path using the -C flag, so you may also do what you want like this:

    out, err := exec.Command("git", "-C", "your/intended/working/directory", "log").
        Output()
    
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