Unix System Basics by the Terminal Technician. Well,it's been a while since I last appeared (in New York) and I think it's about time I wrote some of my findings... Introduction: Commands escription: 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 COLLECTION BASIC - VAX/BASIC SUBSYSTEM BIBLIO - BIBLIOGRAPHIC DATA BASE SYSTEM CDISK - 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 VOLUME FSCK - 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 RESTORE RETRIEVE - INCREMENTAL FILE SYSTEM RESTORE SA, 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 TYPES UPTIME - HOW LONG THE SYSTEM HAS BEEN UP.. USERS - COMPACT LIST OF USERS WHO ARE ON THE SYSTEM VADVISE - 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 based system..My favorite is the University of Illinois,and the Corps of Engineers Research Laboratory...or is it,the University of California ? This article originally appeared on Metronet,Baltimore Maryland 301-944-1210 . DOWNLOADED FROM P-80 SYSTEMS......