The HP Nonstop is the mainframe that I have done most of my research on. Links to my blogpost and whitepaper can be found below.
These teach the basics of HP Nonstop and the basics of privilege escalation techniques for HP Nonstop. This is a cheat sheet for commands on the HP Nonstop and some notes that may be helpful when testing them.
Within HP Nonstop, a lot of the interaction happens by dropping into a processes shell and interacting with it directly. Each process has a different terminal prompt. These are useful to know and will be important for following along with the commands.
TACL Shell. (Like Bash) Enter this shell by typing TACL.
Safeguard shell for querying Safeguard. Enter this by typing SAFECOM.
>SAFECOM; INFO DETAIL,
>SAFECOM; INFO VOLUME $*
>SAFECOM; INFO SUBVOL $*.*
>SAFECOM; INFO DISKFILE $*.*.*
>SAFECOM; INFO USER *.*
>OSH (from here run normal linux commands)
>VOLUME (cd equivalent)
>FILEINFO (ls equivalent)