Unix System Basics by the Terminal Technician.Well,it's been a while since I last appeared (in New York) and I think it'sabout time I wrote some of my findings...Introduction: Commandsescription: This section describes publicly accessible commands in alphabetic   order.Certain distinctions of purpose are made in the headings:CCTON - START OR STOP SYSTEM ACCOUNTING DATA COLLECTIONBASIC  - VAX/BASIC SUBSYSTEMBIBLIO - BIBLIOGRAPHIC DATA BASE SYSTEMCDISK  - CERL DEDICATED FILESYSTEM DISK USAGE ACCOUNTING.CONFIG - BUILDS SYSTEM CONFIGURATION FILES.CRASH  - WHAT HAPPENS WHEN THE SYSTEM CRASHES.DCHECK - FILE SYSTEM DIRECTORY CONSISTENCY CHECK.DISKUSE - FILESYSTEM DISK USAGE ACCOUNTING BY USER ID:DMESG - COLLECT SYSTEM DIAGNOSTIC MESSAGES TO READ THEIR ERROR LOG!DSKCHK - EXAMINE CERL (root) DEDICATED FILESYSTEM ALLOCATION INFO (map)DUMP - INCREMENTAL FILE DUMP.FILSYS,FLBLK, INO - FORMAT OF FILE SYSTEM VOLUMEFSCK - FILE SYSTEM CONSISTENCY CHECK AND INTERACTIVE REPAIR!!FSTAB - STATIC INFO ABOUT THE HOST'S FILESYSTEMS..HIER - SEE FILE SYSTEM HEIRARCHY (map)HOSTNAME - SET (!) or PRINT HOST SYSTEM'S NAME..ICHECK - FILE SYSTEM STORAGE CONSISTENCY CHECK.INTRO X - X IS SYSTEM ERROR NUMBER,AND PRINTS HELP FILES ON SYSTEM CALLS.LABELFS - LABELS A FILE SUB-SYSTEM.MKFS - MAKE A FILE SYSTEM.MOUNT, XXXXXX - MOUNT THE VOLUME OF YOUR CHOICE.(heheh)MSGS - SYSTEM JUNK AND BOGUS MAIL SECTION..(good place to announce the hack,by       mailing a letter to everyone on the system...heheheh).MTAB - MOUNTED FILE SYSTEM TABLE (!)NFCOMMENT - USER INTERFACE TO THE NOTESFILE SYSTEM...(tell the sysop he's a             moron...)PSTAT - PRINT THE SYSTEM FACTS..QUOT - SUMMARIZE FILE OWNERSHIPS (if you get it..)REBOOT - REBOOT SYSTEM...(only if they are fools..this one only worked once..)RESTOR - INCREMENTAL FILE SYSTEM RESTORERETRIEVE - INCREMENTAL FILE SYSTEM RESTORESA, ACCTON - SYSTEM ACCOUNTING..(in other words,turn the log on,or off..hehe)SAVECORE - SAVES A CORE DUMP OF THE CURRENT (modified,heheh) OPERATING SYSTEM           TO THE SYSTEM DISK..SHUTDOWN - CLOSE DOWN THE SYSTEM AT THE GIVE TIME..(see reboot above..)STAT,SEESTAT - COLLECT STATS,PRINT GRAPHS OF SYSTEM STATISTICS..SYSCALL - INDIRECT SYSTEM CALL..SYSTEM - ISSUE A SHELL COMMAND..TYPES - PRIMATIVE SYSTEM DATA TYPESUPTIME - HOW LONG THE SYSTEM HAS BEEN UP..USERS - COMPACT LIST OF USERS WHO ARE ON THE SYSTEMVADVISE - GIVE ADVICE TO PAGING SECTION..(instant feedback,heheh)VLIMIT - CONTROL MAXIMUM SYSTEM RESOURCE CONSUMPTION...(heheh,eat memory)WHO - WHO'S ON THE SYSTEM WITH YOU...ell,this is the first section of a massive series on Hacking a Unix basedsystem..My favorite is the University of Illinois,and the Corps of EngineersResearch Laboratory...or is it,the University of California ?            This article originally appeared on Metronet,Baltimore Maryland             301-944-1210 .DOWNLOADED FROM P-80 SYSTEMS......