S390/z/VM tips and tricks

These are some tips and tricks that are useful for z/VM.

CMS

COMMAND	DESCRIPTION	EXAMPLE
LISTFILES	List files
FILELIST	another list files, interactive
ERASE	Erases files	ERASE FILENAME DISK
COPY	Copies files	FIXME!
RENAME	Renames files	FIXME!

COMMAND	DESCRIPTION	EXAMPLE
DISCONNECT	Disconnect from the current VM, but leave the VM running
LOGOFF	Shut the current VM off
IPL	Restart the VM and launch the Initial Program Loader (i.e. the bootloader)
I	Shortcut for the IPL command
IPL `NUMBER`	Restart the VM and IPL a specific image	IPL 150
IPL CMS	Restart the VM and launch CMS
QUERY `ARGS`	Query general VM state
Q `ARGS`	Shortcut to the `QUERY` command
Q CPUS	List allocated cpus
Q STORAGE	List allocated memory
Q DASD	List allocated disks
Q DISK	List attached disks
Q ACCESSED	List disks available under CP/CMS
Q OSA	List allocated network devices
Q READER ALL	Show all queued files in the reader spool queue
LINK `user` `rdev` `ldev` `mode` PASS=`password`	Link a DASD from a different VM into the current one.	LINK lgentoo4 150 152 RR PASS=...
DETACH `dev`	Detach a DASD that was previously linked in.	DETACH 152
VI VMSG `NUMBER` `ARGS`	After launching the IPL, select `NUMBER` and append `ARGS` to the program's command line (e.g. the Linux kernel's command line)	VI VMSG 0 init=/bin/bb
CP SET RUN ON	Maintain VM running when disconnecting from z/VM

To run CP commands from Linux while in the x3270 session, type: #CP COMMAND, e.g. #CP SYSTEM CLEAR. This would stop the VM.