Executing ssh command with args using Golang os/exec leads to Exit status 127

Question

In my golang program, I need to execute a command on a remote server via ssh. My computer has a private key stored to connect to the server without password.

Here's my code for running remote commands:

out, err := exec.Command("ssh", "myserver.com", "'ls'").Output()
fmt.Println(string(out), err)

This code works as expected, however, when I add arguments to the command executed on the ssh server, the I get an error with Exit Status 127

Example Code:

out, err := exec.Command("ssh", "myserver.com", "'ls .'").Output()
fmt.Println(string(out), err, exercise)

This code leads to: exit status 127

How do I have to format my ssh command in order to avoid this?

h0ch5tr4355 · Accepted Answer · 2022-09-08 14:14:41Z

4

. is another argument in your command which has to be passed in the argument list separately:

out, err := exec.Command("ssh", "myserver.com", "ls", ".").Output()

or:

out, err := exec.Command("ssh", "myserver.com", "ls", "/path/to/any/other/dir").Output()

edited Sep 8, 2022 at 14:14

answered Sep 8, 2022 at 8:09

h0ch5tr4355

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3 Comments

Tobi696 Over a year ago

Omg, I didn't know that the ssh command can also be passed without ''. This works indeed. Thanks a lot!

h0ch5tr4355 Over a year ago

Regarding ssh you also might have a look into: pkg.go.dev/golang.org/x/crypto/ssh For better security and advanced control

spike014 Over a year ago

@Tobi696 Don't forget to accpet this answer.

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