Take command line args and execute in shell

exec_cmd.go

package main

import (
    "fmt"
    "os"
    "os/exec"
)

func main() {
    var cmdName string = os.Args[1]
    var cmdArgs []string = os.Args[2:]
    cmdOut, err := exec.Command(cmdName, cmdArgs...).Output()
    if err != nil {
        fmt.Fprintln(os.Stderr, "There was an error running command: ", err)
        os.Exit(1)
    }
    output := string(cmdOut)
    fmt.Println(output)
}

exec_cmd_example.txt

# ./exec_cmd ps -ef
UID        PID  PPID  C STIME TTY          TIME CMD
root         1     0  0 03:05 ?        00:00:00 bash
root     29792     1  0 04:35 ?        00:00:00 ./exec_cmd ps -ef
root     29797 29792  0 04:35 ?        00:00:00 ps -ef