Useful SAP programs

Program Description
BALVBT01 Example SAP program for displying multiple ALV reports on one page
BCALV_GRID_DEMO ALV Dialog grid demo (4.6)
SHOW_COLO Displays all colours available
SHOW_ICON Displays all icon available
RGUGBR00 Substitution/Validation and rules utility
RKCTSEAR Search source code of various programs for up to two strings. Also see RPR_ABAP_SOURCE_SCAN or use search in source functionality via SE80
RPCIFU01 Display File
RPCIFU03 Download Unix File to PC
RPCIFU04 Upload PC File to Unix File
RPR_ABAP_SOURCE_SCAN Search ABAP code for a string. Much more flexible than RSRSCAN1 or RKCTSEAR
RSBDCBTC Submit a BDC job with an internal batch number and wait for the end of the batch input session
RSBDCDRU Prints the contents of a Batch Input session. No options for error transactions only
RSBDCOS0 Execute OS Command (Logged in SYSLOG and Trace Files)
RSBDCSUB Process batch input sessions automatically
RSBTCDEL Delete batch jobs
RSCONN01 SAPconnect: Start Email Send Process
RSCSAUTH Maintain/Restore Authorization Groups
RSINCL00 Extended ABAP Program Reference List
RSMODRES Restore enhancement projects after upgarde
RSORAREL Check Oracle Version
RSPARAM Display all instance parameters
RSPO0041 Delete Old Spool Requests
RSSNAPDL Reorganization Program for Table SNAP of Short Dumps
RSTRANSP Transport Report Variants
RSTXFCON SAPscript: Conversion of Page Format for Forms
RSTXPDFT4 Convert spool request to PDF document
RSTXPDFT5 GUI download of a spool request
RSTXSCRP SAPscript Export to Dataset / SAPscript Import from Dataset (Upload and download SAPScript layout sets)
RSTXTRAN Transfer of SAPscript Texts(standard texts) to a transport
RSUSR003 Check the Passwords of Users SAP* and DDIC in All Clients
RSUSR006 List of Users with Incorrect Logons
RSVARFIT Adjust Variants to Modified Selections
RSVTPROT Evaluation of change logs
RSWBO052 Change Object Directory Entries
RSWBO060 Include Objects in a Transport Request
SAPMSUU0 Program for user maintenance(SU01), Maybe useful if you do not have access to the actual SU01 transaction code.