How use and operator?

Hello!
I have question.
I have this code:

```
session := sh.NewSession()
session.SetTimeout(time.Second * 30)
session.ShowCMD = true
session.SetDir(repositoryPath)
session.Command(
"rm", "-f", archiveFile, "&&",
"git", "archive", branchName, "--format", "tar", "--output", archiveFile,
)
```

And debug message:
`[golang-sh]$ rm -f /tmp/archive.tar && git archive origin/master --format tar --output /tmp/archive.tar`
But second command not executed...
If i remove `"rm", "-f", archiveFile, "&&",`
Its work, but i need this "&&" operator.
What mistake?

Start with the Session.Command entry point and its handling of the arguments shown in the issue. Reproduce the rm and git archive invocation while comparing the debug output with actual execution. Done means the behavior of the && argument is established and the supported usage or required change is clearly documented or tested.

Written by the indexing model from the issue text.