Re: "Boot time scripts should have an .sh extension"

> I got the following out of a security checklist, but am skeptical. Can
> anyone provide some feedback as to its validity (or lack of).

It's definitely the case that Solaris rc* scripts (which execute start and
stop scripts in similarly named directories) will execute .sh files in the
same shell and all others in a new shell. The rc* scripts are simple shell
scripts that you can read to verify that.

On older versions of Solaris you'd change the umask of processes started at
boot time by creating a umask.sh script that gets run early in the boot
sequence. For example

@ist[106]% more /etc/rc3.d/S00umask.sh
umask 022

On recent versions of Solaris the preferred method is to set it in
/etc/default/init (but the previous strategy still works).