Thanks to grunt team and Tyler Kellen
To enable tasks auto-completion in shell you should add eval "$(gulp --completion=shell)"
in your .shellrc
file.
Add eval "$(gulp --completion=bash)"
to ~/.bashrc
.
Add eval "$(gulp --completion=zsh)"
to ~/.zshrc
.
Add Invoke-Expression ((gulp --completion=powershell) -join [System.Environment]::NewLine)
to $PROFILE
.