The current docs fail with the following error:
$ image=$(nova image-list | egrep "$DEFAULT_IMAGE_NAME[^-]" | awk '{print $2 }')
zsh: bad math expression: operand expected at `^-'
With this change, these docs work as expected for zsh users.
Change-Id: I56c39718cfe40208f62ea4786d684f6b24431ed9
8d9b80684b