[rancid] frr/zebra more info

[Randy Bush]

> I think you need to add an x to the end of this line:
> frrx;script;rancid -t frr
>  Should read:
> frrx;script;rancid -t frrx

ok.  makes sense.  but, as i said in a private email

> made a new type in `/etc/raancid/rancid.types.conf`
> ```
> frrx;script;rancid -t frr
> frrx;login;clogin
> frrx;module;frr
> frrx;inloop;frr::inloop
> frrx;command;frr::ShowVersion;show version
> frrx;command;frr::WriteTerm;write term
> frrx;command;rancid::WriteTerm;start-shell cat /etc/network/interfaces
> frrx;command;rancid::WriteTerm;start-shell cat /etc/nftables.conf
> ```
> 
> and changed the `router.db` entry to that type

on the target, the user rancid has a special shell, not bash/csh

rancid:x:1003:1003:Rancid User,,,:/home/rancid:/home/rancid/do-vtysh

which simply does `sudo vtysh` so rancid can issue vtysh commands

but, despite rumors, vtysh does not support `start-shell` or any
other way to `cat` a file

randy