douhuan2101
2019-05-28 09:19
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使用golang从命令行将输入读取到Shell脚本exec中

I am using go to run a shell script using exec.command like below and I want to take an input argument using command line say i, and my output should be based on i, how would I do that?

i := os.Args[1:2]
out, err := exec.Command("bash", "-c", "tail -n 1 /var/log/apache2/access.log | awk '{print $i/1024}' >> mem_usage.csv").Output()
if err != nil {
    fmt.Println(err.Error())
    return
 }

How could I use that i in the shell script?

Without i it works fine i.e if I put $1 or $2 it works fine but I want user to give me the position of i and then calculate accordingly.

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