UNIX User's Manual 3.0 vs 4.1 vs 5.0 Manual Differences

General:
	Release 4.1 sees the beginning of a trend of splitting documents
	up into multiple volumes.  The Release 3.0 User's Manual consists
	of all 8 sections of the manual, but the 4.1 manual instead only
	contains sections 1-6, excluding the 1M maintenance commands.
	Additionally, section 4, 5, and 6 are resorted from their original
	positions in 3.0 as 5, 6, and 7 respectively, meaning that Release 3.0's
	section 4 (special files) likely becomes section 7 (special files) in 4.1.
	The only documentation I have of this nature is the Release 5.0
	Administrator's Manual which indeed lists special files as section 7.

	Based on this, there likely is also a 3B20S Administrator's Manual featuring:

		1. System Maintenance Commands and Application Programs
		7. Special Files.
		8. System Maintenance Procedures.

	This leads to the movement of a few sections to a separate manual starting around
	4.1.  This might even render the addition of System to the name the only
	development in 5.0 in the beginning of the manual.

	Typographically, general spacing and overall typesetting is more congruent
	between 4.1 and 5.0 with regards to spacing of characters on individual lines.

	Given the lack of a present 4.1 Administrator's Manual, many 5.0 additions may
	actually reflect those from 4.1, these will be noted where obvious

	The HONEYWELL print commands dpd and dpr drop out in 4.1, is it 3B20-incompatible?
		Likewise no fget, fsend

	No Fortran or SNOBOL on the 3B20 as of 4.1 it seems

	No factor command in 4.1, back in 5.0 so probably no 3B20 algorithm yet

	4.1 adds the LP print system, and that is the only one supported on 3B20 at the time
	5.0 seems to support both, perhaps some systems use lpr and others LP

	No support for scc (stand-alone C compiler) on 3B20 as of 4.1

	Virtual protocol machine compiler becomes 1M tool

Title Page and Intro:
	Release 4.1:
		- removes the names of the editors
		- removes Laboratory 364 address
		- moves UNIX trademark notification from back to front
		- adds non-disclosure notice

		- adds back page number collating with introduction

		- removes acknowledgements section

		- replaces intro note on platform specifics
			- 3.0 uses yacc missing on PDP-11/23 as an example
			- 4.1 replaces this with noting hardware caveats in mast
		- adds intro note on "Obsolescent" note in top mast for deprecated features
		- manual division reflects the drop to 6 sections and shuffle as explained in General
		- 1C examples converted from dpr and fget to send and uucp
		- makes notes on processor features limiting applications more explicit
		- drops note about 1M commands per spinoff of Administrator's Manual
		- adds a "may" to render may have a directory called /usr/lbin for locals
		- UNIX supervisor -> UNIX kernel

		- drops note about getty's role in logging in as it's for admins now
		- drops mention of BASIC interpreter/compiler bs, perhaps not supported on 3B20
		- replaces basic mention of adb with sdb, drops, VAX-11/780 sdb note

	Release 5.0:
		- adds "System" to UNIX, rendering UNIX "System" User's Manual
		- 1M section in Administrator's Manual mention 1M is for "cross referencing reasons"
		- 1M section drops note on commands not being intended for regular use (could be 4.1)
		- 7 special files section in Administrator's Manual drops DEC mention (could be 4.1)
		- adds facilitiy descriptions to section 8 in Administrator's Manual
		- drops section 8 mention of being not interesting (both could be 4.1)

TOC Differences (Added and Dropped Pages):
	- Note, any (1M), (7), or (8) could come from 4.1 or 5.0
	- Some programs drop out on 4.1 since it is 3B20 specific

	Release 4.1 Added:
		cflow  - generate C flow graph
		cprs   - compress an IS25 object file
		cxref  - generate C program cross reference (replaces cref and xref)
		dis    - 3B20 disassembler
		dump   - becomes an object file component dumper, replaces a filesystem dumper
		enable - enable/disable LP printers
		hpio   - HP 2645A terminal tape file archiver
		ipcs   - report inter process communication facilities status
		list   - produce C souce listing from 3B20 object file
		lp     - send/cancel requests to an LP line printer
		lpstat - print LP status information
		newform - change the format of a text file
		sadp   - disk access profiler
		sar    - system activity reporter
		trouble - log a trouble report
		vpmsave - save and print VPM traces
		vpmset - connect/load VPM drivers and UN53s
		x25pvc - install, remove, or get status for a PVC or BX.25 link

		msgctl - message control operations
		msgget - get message queue
		msgop  - message operations
		plock  - lock process, text, or data in memory
		semctl - semaphore control operations
		semget - get set of semaphores
		semop  - semaphore operations
		shmctl - shared memory control operations
		shmget - get shared memory segment
		shmop  - shared memory operations
		sys3b  - 3B20 specific system calls

		drand48 - uniform random number generators
		getcwd  - get path-name of current working directory
		hsearch - manage hash search tables
		ldahread, ldclose, ldfhread, ldlread, ldlseek, ldohseek, ldopen, ldrseek, ldshread, ldsseek, ldtbindex, ldtbread, ldtbseek - object file functions
		regcmp  - regular expression compile/execute
		stdipc  - standard interprocess communication package
		strtol  - convert ascii to long integer, specify base
		tsearch - manage binary search trees

		system  - format of 3B20 system description file
		termio  - general terminal interface

		mosd    - the OSDD adapter macro package for formatting documents
		mptx    - the macro package for formatting a permuted index

		jotto   - secret word game

	Release 4.1 Removed:
		cref   - make cross-reference listing
		kas    - assembler for the KMC11 microprocessor
		kun    - un-assembler for the KMC11/DMC11 microprocessor
		mmcheck - check usage of mm macros and eqn delimiters
		orjestat - RJE status and enquiries
		typo   - find possible typographical errors
		vpmstart - load the KMC11-B; print VPM traces
		vpr    - Versatec printer spooler
		xref   - corss reference for C programs

		regex  - regular expression compile/execute

		dump   - incremental dump tape format
		tp     - magnetic tape format

	Release 5.0 Added:
		ar     - general ar with pdp outlier
		       - PDP-11 seems to become the outlier system somewhere between 4.1 and 5.0
		as     - common assembler (replaces system-specific assemblers except pdp)
		       - could have been put in 4.1 w/ common assembler targeting VAX & 3B20
		asa    - interpret ASA carriage control characters
		convert - convert object and archive files to common formats
		cpp    - the C language preprocessor
		ipcrm  - remove a message queue, semaphore set or shared memory id
		kasb   - assembler/un-assembler for the KMC11B microprocessor
		ld     - common assembler (replaces system-specific assemblers except pdp)
		machid - provide truth value about your processor type
		makekey - generate encryption key (moved from 8)
		nroff  - separate manpage due to ditroff developments
		se     - screen editor for video terminals
		size   - common size (replaces system-specific sizes except pdp)
		strip  - common strip (replaces system-specific strips except pdp)
		ststat - report synchronous terminal facilities status

		clock  - Report CPU time used
		erf    - error function and complementary error function
		ftw    - walk a file tree
		getut  - access utmp file entry
		matherr - error-handling function
		memory - memory operations
		sputl  - access long numeric data in a machine independent fashion
		ttyslot - find the slot in the utmp file of the current user
		x25alnk, x25clnk, x25hlnk, x25ipvc - BX.25 link management

		a.out  - common binary format with pdp exception
		ar     - common archive format with pdp exception
		filehdr - file header for common object files
		gettydefs - speed and terminal settings used by getty
		issue  - issue identification file
		ldfcn  - common object file access routines
		linenum - line number entries in a common object file

		1M:
		abt    - abort on-line diagnostics
		acuset - connect ACUs and communication lines
		atb    - attach to an Address Translation Buffer
		brc    - system initialization shell scripts (moved from 8, rc)
		checkall - faster file system checking procedure
		chmap  - change the diagnostic spooler map file
		config - separate configs for DEC and 3B20
		dcopy  - copy file systems for optimal access time
		dgn    - initiate on-line diagnostics
		don    - device logically on, logically off or display status
		dskfmt - format and verify disk packs
		dstart - start, stop and find status of on-line diagnostics
		emulcntrl - perform 3270 emulation control functions
		emulload - load and start 3270 emulation script
		emulstat - get 3270 emulation controller/terminal status
		ff     - list file names and statistics for a file system
		filesave - daily/weekly UNIX file system backup (moved from 8)
		finc   - fast incremental backup
		format - format and/or check RP06 and RM05 disk packs (moved from 8, rp6fmt)
		frec   - recover files from a backup tape
		fts    - Field Test Set interface
		fuser  - identify processes using a file or file structure
		getty  - moved to 1M from 8
		init   - moved to 1M from 8
		ipb    - read the EAI Input Parameter Buffer
		killall - kill all active processes
		lpadmin - configure the LP spooling system
		lpsched - start/stop the LP request scheduler and move requests
		mkboot - convert a.out file to boot image
		msi    - memory system diagnostic interface
		newboot - load VTOC, prom patch, or lboot
		nscloop - perform the NSC local network loopback functions
		nscmon - operationally control the NSC local network
		pcldaemon - PCL link monitor
		prm    - send a Processor Recover Message
		reboot - reboot the system
		rmv    - remove unit from service before on-line diagnostics
		rst    - restore unit to service after on-line diagnostics
		setmrf - override system MRF action
		ssr    - print or modify the System Status Register
		sta    - find status of pending on-line diagnostic requests
		stgetty - wait on synchronous login line for use
		vcf    - VAX-11/780 configuration verification program
		vpmc   - dec and u3b versions become 1M from 1
		vpmtest - test KMC lines
		x25pvc - install, remove, or get status for a BX.25 minor device or link, 1M from 1

		7:
		acu    - Automatic Call Unit (ACU) interface
		dgn    - on-line diagnostic interface
		dmk    - DM11-BA modem control multiplexor
		dsk    - 3B20S moving-head disk
		emulio - 3270 emulation interface
		gd     - general driver for moving-head disks
		gt     - general driver for tape drives
		hm     - RM05 moving-head disk
		ml11   - ML11 solid-state disk
		nc     - network control
		nsc    - NSC adapter interface specification
		osm    - interface to UNIX system messages
		rm80   - RM80 moving-head disk
		rp07   - RP07 non-removable medium moving-head disk
		stermio - general synchronous terminal interface
		termio - general terminal interface
		tn4    - eight line asynchronous interface
		tn74   - two line asynchronous interface
		tn83   - console/printer interface
		tn85   - medium speed line printer controller
		ts11   - TS11 magnetic tape interface
		tu78   - TU78 magnetic tape interface
		un32   - magnetic tape interface
		un52   - magnetic tape interface
		un53   - UN53/TN82 synchronous device interface
		x25    - BX.25 network interface

		8:
		3B20boot - 3B20 bootstrap procedures
		3B20ops - 3B20 console operations
		750ops - VAX-11/750 console operations
		780ops - VAX-11/780 console operations
		eai    - 3B20 emergency action interface
		prm    - 3B20 Processor Recovery Messages

	Release 5.0 Removed:
		fptrap - floating point interpreter

		dj     - DJ-11 asynchronous multiplexor
		dn     - DN-11 ACU interface
		dqs    - DQS-11 interface for two-point BSC

		termio - general terminal interface

		etp    - Equipment Test Package
		hasp   - RJE to IBM
		sar    - system activity report package
		uvac   - RJE to UNIVAC

Intros:
	1 - Commands and Application Programs
		4.1:
			- Removes mention of 1M
	2 - System Calls and Error Numbers
		4.1:
			- Adds ENOMSG (35) and EIDRM (36)
			- Adds Message Queue Identifier description
			- Adds Message Operation Permissions
			- Adds Semaphore Identifier
			- Adds Semaphore Operation Permissions
			- Adds Shared Memory Identifier
			- Adds Shared Memory Operation Permissions
	3 - Subroutines and Libraries
		5.0:
			- Fortran intrinsics added, unsure whether this was omitted in 4.1 or 3B20 specifically
	4 - File Formats
		4.1:
			- Mentions 1M being moved to Administrator's Manual
	6 - Games
		4.1:
			- Remove mention of using cron to block access