choose shell for item 8 in /usr/local/sbin/opnsense-shell

[tessus]

In the /usr/local/sbin/opnsense-shell script that is used as the shell for the root user, the shell when selecting menu entry 8 is hard-coded to /bin/csh.

I would like to use bash (/usr/local/bin/bash) instead.

Can you please point me to the correct repo for this script so that I can submit a PR? I am thinking of reading a file (e.g. /etc/opnsense-shell) and in case the file exists and has a CMD_SHELL var, it will be used. Otherwise the current default is used. We can discuss the specifics in the PR.

What do you think?