dtkwt62022 2015-12-11 17:45
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如何执行Shell内置命令

I am trying to find out if a program exists on Linux and I found this article. I tried executing this from my go program and it keeps giving me an error saying it can-not find "command" in my $PATH, which is to be expected since it's a built-in command in linux and not a binary. So my question is how to execute built in commands of linux from within go programs?

exec.Command("command", "-v", "foo")

error: exec: "command": executable file not found in $PATH

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  • dpp78272 2015-12-11 17:48
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    Just like that article says, "command" is a shell built-in. You can do this natively in go via exec.LookPath.

    If you must, you can either use the system which binary, or you can execute command from within a shell,

    exec.Command("/bin/bash", "-c", "command -v foo")
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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