exec.Command does not invoke a shell, the `>' you use in bash is a
shell function (https://www.gnu.org/software/bash/manual/bash.html#Redi
rections). Note that the example for CombinedOutput invokes "sh" as the
command with "-c", "ls... (https://golang.org/pkg/os/exec/#example_Cmd_
CombinedOutput).
ls is a bash builtin. You can probably invoke the ls command with /bin/ls.
But also, passing ">" as an argument to exec.Command doesn't do what
you want. > is a redirection for a shell and exec.Command is not a
shell.
I'm not sure what you're trying to accomplish, but here are two things
you coul
">" is a special character interpreted by your shell.
On Sun, Nov 12, 2017 at 8:35 PM, wrote:
> package main
>
> import(
> "fmt"
> "os/exec"
> )
>
> func main ()
> cmd := exec.Command("ls", ">", "/dev/null")
> output, err := cmd.CombinedOutput()
> if err != nil {
> fmt.Println(fmt.Sprint(err) +
package main
import(
"fmt"
"os/exec"
)
func main ()
cmd := exec.Command("ls", ">", "/dev/null")
output, err := cmd.CombinedOutput()
if err != nil {
fmt.Println(fmt.Sprint(err) + ": " + string(output))
}
When I run this go program I get:
exit status: 1: ls: >:No such file or directory
/dev/null
