[modify] remove command execute result and shell type.
[modify] remove command execute result and shell type.

Signed-off-by: Cedar Li <4967c2d13588cc1ede4a58d25036ffd1a7613115@gmail.com>

cedarli/zsh,cedarli/zsh,cedarli/zsh,cedarli/zsh,cedarli/zsh,cedarli/zsh