Basic AS/400 Commands.

DSPMSG	Displays messages in queue
DSPMSGD	Displays description of messages, ie CPF messages
WRKMSGF QCPFMSG	Displays contents of MONMSG file
WRKUSRPRF -	Can work with specified user's profile
WRKSBMJOB *JOB	Displays my jobs for the current session
WRKACTJOB	Displays all active jobs
WRKUSRJOB	Displays list of my jobs to work with
WRKOBJ	Work with an object.  Use *ALLUSR in qualified name to skip Q libraries
WRKSPLF	Displays spool files
WRKOUTQ	Displays members in specified OUTQ
DISPLIB	Displays contents of specified library
EDTLIBL	Allows addition and deletion of libraries to and from list
ADDLIBLE Library Name	Add library to current list
STRPDM	Start PDM
STRDBG	Start Debug
ADDBKP	Add a break point and variables to monitor in debug
RMVBKP	Remove a break point in debug
ENDDBG	End Debug
STRDBU	Start DBU (Database Utility) Look at and make changes to the database
DBU Qualified Name	Runs DBU without the above command.  ADDLIBLE DBU41 *LAST before using
STRDFU	Start DFU (Data File Utility) Many of the same functions of DBU
DSPFFD	Displays file field descriptions
DSPFD	Displays file description for specified file
DSPPFM	Displays member of a physical file
DSPDBF	Displays contents of database file. Must add TAATOOL to library list before using this command
DSPPGMREF	Display the files used in a program and which libraries the program was compiled over
PRTRNG	Will allow printing a range of pages from a member in the specified OUTQ. Must add PRTRNG to library list before using this command
OUTQ(PRINTER)	Mark object in spool file with 2 for change.  Type this on the command line.
WRKJOBSCDE	Look at scheduled jobs
RUNQRY QRYFILE(LIB/FILE)	Run query on a file with no parameters
DSPDBR  LIB/FILE	Shows logicals related to a physical file