How to Run the Shell in the Go Language

http://golang.org/pkg/os/exec/ #example_Cmd_Output

package main

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

funcmain(){
    out,err: = exec.Command("date").Output()
    if err!=nil{
        log.Fatal(err)
    }
    fmt.Printf("The date is %s\n", out)
}

http://golang.org/pkg/os/exec/
Depending on the purpose, there are several methods.

Ruby backquotes are performed through the shell.Therefore,

`foo-flag`

is actually

$SHELL-c'foo-flag'

Runs as .That is, $SHELL parses the argument and divides it into foo and -flag.
Golang does not have instructions to execute commands through the shell, such as system(3).As erukiti wrote,

exec.Command("foo", "-flag")

Create a Cmd object in the form to get standard output from Output, or

exec.Command(os.Getenv("SHELL"), "-c", "foo-flag")

By doing so, I think you will get the expected action.
If you want to split the string into an array that passes to exec.Command, you can use go-shellwords.