From 6c9eaea97a193eb3ff1487a396ab946299f0f547 Mon Sep 17 00:00:00 2001 From: CSRG Date: Tue, 2 Aug 1983 05:57:49 -0800 Subject: [PATCH] BSD 4_3 development Work on file usr/doc/misc/uchanges.4.2/2.t Synthesized-from: CSRG/cd1/4.3 --- usr/doc/misc/uchanges.4.2/2.t | 453 ++++++++++++++++++++++++++++++++++ 1 file changed, 453 insertions(+) create mode 100644 usr/doc/misc/uchanges.4.2/2.t diff --git a/usr/doc/misc/uchanges.4.2/2.t b/usr/doc/misc/uchanges.4.2/2.t new file mode 100644 index 0000000000..babd613217 --- /dev/null +++ b/usr/doc/misc/uchanges.4.2/2.t @@ -0,0 +1,453 @@ +.ce +.LG +.B "Bug fixes and changes" +.SM +.sp +.LP +.LP +.LG +.ce +Section 1 +.SM +.sp +.PP +.de BP +.IP \fB\\$1\\fR 11n +.. +.BP adb +Support has been added for interpreting kernel data structures +on a running system and in post mortem crash dumps created +by savecore. A +.B \-k +option causes adb to map addresses +according to the system and current process page tables. +A new command, $p, can be used to switch between process contexts. +Many scripts are available for symbolically displaying +kernel data structures, searching for a process' context +by process ID, etc. A new document, ``Using ADB to +Debug the UNIX Kernel'', supplies hints in the use of adb +with system crash dumps. +.BP addbib +Is a new utility for creating and extending bibliographic +data bases for use with refer. +.BP apply +Is a new program which may be used to apply a command +to a set of arguments. +.BP ar +Has a new key, `o', for preserving a file's modification +time when it is extracted from an archive. +.BP cc +Supports the additional symbol information used by dbx. +The old symbol information, used by the defunct sdb debugger, +is available by specifying the +.B \-go +flag. A new flag, \fB\-pg\fP, +creates executable programs which collect profiling information +to be interpreted by the new gprof program. A bug in the C +preprocessor, which caused line numbers to be incorrect +for macros with formal parameters with embedded newlines has +been fixed. The C preprocessor now properly handles hexadecimal +constants in ``#if'' constructs and checks for missing ``#endif'' +statements. +.BP chfn +Now works interactively in changing a user's information +field in the password file. +.BP chgrp +Is now in section 1 and may be executed by anyone. Users +other than the super-user may change +group ownership of a file they own to any group in +their group access list. +.BP cp +Now has a +.B \-r +flag to copy recursively down a file system tree. +.BP csh +A bug which caused backquoted commands to wedge +the terminal when interrupted has been fixed. Job identifiers +are now globbed. A bug which caused the ``wait'' command +to uninteruptible in certain cases has been fixed. History +may now be saved and restored across terminal sessions with +the \fIsavehist\fP variable. The newgrp command has been +deleted due to the new group facilities. +.BP ctags +Now handles C \fBtypedefs\fP. +.BP cu +Exists only in the form of a ``compatible front-end'' to +the new tip program. +.BP dbx +Is a new symbolic debugger replacing sdb. Dbx handles C +and Fortran programs. +.BP delivermail +.br +Has been replaced by the new sendmail program. +.BP df +Understands the new file system organization and +reports all disk space totals in kilobytes. +.BP du +Now reports disk usage in kilobytes and uses the new +field in the inode structure which contains the actual +number of blocks allocated to a file to increase +accuracy of calculations. +.BP dump +Has been moved to section 8. +.BP error +Has been taught about the error message formats of troff. +.BP eyacc +A bug which caused the generated parser to not recognize valid +null statements has been fixed. +.BP f77 +Has undergone major changes. +.IP +The i/o library has been extensively tested and debugged. +Sequential files are now opened at the \s-2\fBBEGINNING\fP\s0 +by default; previously they were opened at the end. +.IP +Compilation of data statements has been substantially sped up. +Significant new optimization is optionally available (this +is still a bit buggy and should be used with caution). +Even without optimization, however, single precision computations +execute much faster. +.IP +The new debugger, dbx, has replaced sdb for debugging Fortran +programs; sdb is no longer supported. +.IP +Files with ``.F'' suffixes are preprocessed by the C preprocessor. +This allows C-style ``#include'' and ``#define'' constructs to be used. +The compiler has been modified to print error messages with sensible +line numbers. Make also understands the ``.F'' suffix. Note that +when using the C preprocessor, the 72 column convention is not followed. +.IP +The +.B \-I +option for specifying short integers has been changed +to \fB\-i\fP. The +.B \-I +option is now used to specify directory search paths +for ``#include'' statements. A +.B \-pg +option for creating executable +images which collect profiling information for gprof has been added. +.BP fed +Is a font editor of dubious value. +.BP file +Now understands symbolic links. +.BP find +Has a new +.B \-type +value, `l', for finding symbolic links. +.BP fp +Is a new compiler/interpreter for the +Functional Programming language. A supporting document is +present in Volume 2C of the UNIX Programmer's Manual. +.BP fpr +Is a new program for printing Fortran files with embedded +Fortran carriage controls. +.BP fsplit +Is a new program for splitting a multi-function Fortran file +into individual files. +.BP ftp +Is a new program which supports the ARPA standard File Transfer +Protocol. +.BP gcore +Is a new program which creates a core dump of a running process. +.BP gprof +Is a new profiling tool which displays execution time for +the dynamic call graph of a program. Gprof works on C, Fortran, +and Pascal programs compiled with the +.B \-pg +option. Gprof may +also be used in creating a call graph profile for the operating +system. A supporting document, ``gprof: A Call Graph Execution +Profiler" is included in Volume 2C of the UNIX Programmer's +Manual. +.BP groups +Is a new program which displays a user's group access list. +.BP hostid +Is a new program which displays the system's unique identifier +as returned by the new gethostid system call. The super-user +uses this program to set the host identifier at boot time. +.BP hostname +Is a new program which displays the system's name as returned +by the new gethostname system call. The super-user uses this +program to set the host name at boot time. +.BP indent +Is a new program for formatting C program source. +.BP install +Is a shell script used in installing software. +.BP iostat +Now reports kilobytes per second transferred for each +disk. This is useful as the unit of information transferred +is no longer a constant one kilobytes. +.BP last +Now displays the remote host from which a user logged in +(when accessing a machine across a network). The pseudo +user ``ftp'' may be specified to find out information about +FTP file transfer sessions. +.BP lastcomm +Now displays flags for each command indicating if the program +dumped core, used PDP-11 mode, executed with a set-user-ID, +or was created as the result of a fork (with no following exec). +.BP learn +Now has lessons for vi (this is user contributed software +which is not part of the standard system). +.BP lint +Has a new +.B \-C +flag +for creating lint libraries from C source code. Has improved +type checking on static variables. +.BP lisp +Has been ported to several 68000 UNIX systems, the relevant +code is included in the distribution. A new vector data +type and a form of ``closure'' have been added. +.BP ln +Has a new flag, \fB\-s\fP, for creating symbolic links. +.BP login +Has been extensively modified for use with the rlogind +and telnetd network servers. +.BP lpq +Is totally new, see lpr. +.BP lpr +And its related programs are totally new. The line printer +system supports multiple printers of many different characteristics. +A master data base, /etc/printcap, describes both local printers +and printers accessable across a network. A document +describing the line printer system is now part of Volume 2C +of the UNIX Programmer's Manual. +.BP lprm +Is totally new, see lpr. +.BP ls +Has been rewritten for the new directory format. It understands +symbolic links and uses the new inode field which contains the +actual number of blocks allocated to a file when the +.B \-s +flag is supplied. Many rarely used options have been deleted. +.BP m4 +A bug which caused m4 to dump core when keywords were +undefined then redefined has been fixed. +.BP Mail +Now supports mail folders in the style of the Rand MH system. +Has been reworked to cooperate with sendmail in understanding +the new mail address formats. Allows users to defined message +header fields which are not be displayed when a messages is +viewed. Many other changes are described in a revised +version of the user manual. +.BP make +Understands not to unlink directories when interrupted. +Understands the new ``.F'' suffix for Fortran source files +which are to be run through the C preprocessor. Has a +new predefined macro MFLAGS which contains the flags +supplied to make on the command line (useful in creating +hierarchies of makefiles). +.BP mkdir +Now uses the mkdir system call to run faster. +.BP mt +Has a new command, status, which shows the current state +of a tape drive. +.BP mv +Has been rewritten to use the new rename system call. As +a result, multiple directories may now be moved in a single +command, the restrictions on having ``..'' in a pathname +are no longer present, and everything runs faster. +.BP net +And all related Berknet programs are no longer part +of the standard distribution. These programs live on +in /usr/src/old for those who can not do without them. +.BP netstat +Is a new program which displays network statistics and +active connections. +.BP oldcsh +No longer exists. +.BP od +Has gobs of new formats options. +.BP pagesize +Is a new program which prints the system page size for use +in constructing portable shell scripts. +.BP passwd +Now reliably interlocks with chsh, chfn, and vipw, in +guarding against concurrent updates to the password file. +.BP pc/pi +\fBFor\fP loops are now done according to the standard. +Files may now be dynamically allocated and disposed. +Records and variant records are now aligned to correspond to +C structures and unions (this was falsely claimed before). +Several obscure bugs involving formal routines have been +fixed. Three new library routines support random access +file i/o, see /usr/include/pascal for details. +.BP pc (only) +\fBFor\fP loop variables and \fBwith\fP +pointers are now allocated to registers. +Separate compilation type checking can now be done without reference +to the source file; this permits movement (including distribution) +of .o files and creation of libraries. +Display entries are saved only when needed (a speed optimization). +.BP pdx +Is a new debugger for use with pi. Pdx is invoked automatically +by the interpreter if a run-time error is encountered. +Future work is planned to extend the new +dbx debugger to understand code generated by +the Pascal compiler pc. +.BP ps +Has been changed to work with the new kernel and is no longer +dependent on system page size. All process segment sizes +are now shown in kilobytes. Understands that the old +``using new signal facilities'' bit in the process structure +now means ``using old 4.1BSD signal facilities''. +.BP pwd +Now simply calls the \fIgetwd\fP\|(3) routine. +.BP rcp +Is a new program for copying files across a network. +The complete syntax of cp is supported, including recursive +directory copying. +.BP refer +Has had many bugs fixed in it and the associated \-ms macro +package support made to work. +.BP reset +Now resets all the special characters to the system defaults +specified in the include file . +.BP rlogin +Is a new program for logging in to a machine across a +network. Rlogin uses the files /etc/hosts.equiv and .rhosts +in the users login directory to allow logins to be performed +without a password. Rlogin supports proper handling of ^S/^Q +and flushing of output when an interrupt is typed at the +terminal. Its `~' escape sequences are reminiscent of the +old cu program (as it is based on the same source code). +.BP rmdir +Now uses the rmdir system call to run more efficiently and +not require root privileges. Unfortunately, this means +arguments which end in one or more ``/'' characters are no +longer legal. +.BP roffbib +Is a new program for running off bibiliographic databases. +.BP rsh +Is a new program which supports remote command execution +across a network. +.BP ruptime +Is a new program which displays system status information +for clusters of machines attached to a local area network. +.BP rwho +Is a new program which displays users logged in on clusters +of machines attached to a local area network. +.BP script +Has been rewritten to use pseudo-terminals. This allows +the C shell job control facilities (among other things) +to be used while scripting. A side effect of this change +is that scripts now contain everything typed at a terminal. +.BP sdb +Has been replaced by dbx; it still lives on in /usr/src/old +for those with a personal attachment. +.BP sendbug +Is a new command for submitting bug reports on 4.2BSD in +a standard format suitable for automatic filing by the +bugfiler program. +.BP sh +No longer has a newgrp command due to the new groups facilities. +.BP sortbib +Is a new command for sorting bibliographic databases. +.BP strip +Has been made blindingly fast by using the new truncate +system call (thereby eliminating the old method of copying +the file). +.BP stty +The default system erase, kill, and interrupt characters have +been made the DEC standard values of DEL (`^?'), `^U', and +\&`^C'. This is not expected to gain much popularity, but was +done in the interest of compatibility with many other standard +operating systems. +.BP su +Has been changed to do a ``full login'' when starting up +the subshell. A new flag, \fB\-f\fP, does a ``fast'' su for when +a system is heavily loaded. Extra arguments supplied to +su are now treated as a command line and executed directly +instead of creating an interactive shell. +.BP sysline +Is a new program for maintaining system status information +on terminals which support a ``status line''; a poor man's +alternative to a window manager (or emacs). +.BP tail +Has a larger buffer so that ``tail \-r'' and similar +show more. +.BP talk +Is a new program which provides a screen-oriented write +facility. Users may be ``talked to''across a network, +though satellite response times have indicated overseas +conversations are still best done by phone. Can be very +obnoxious when engaged in important work. +.BP tar +Now allocates its internal buffers dynamically so that the +block size can be specified to be very large for streaming +tape drives. Also, now avoids many core-core copy operations. +Has a new +.B \-C +option for forcing chdir operations in the middle +of operation (thereby allowing multiple disjoint subtrees to +be easily placed in a single file, each with short relative +pathnames). Has a new flag, `B', for forcing 20 block records +to be read and written; useful in joining two tar commands +with a remote +shell to transfer large amounts of data across a network. +.BP telnet +Is a new program which supports the ARPA standard Telnet +protocol. +.BP tip +Replaces cu as the standard mechanism for connecting to +machines across a phone line or through a hardwired connection. Tip +uses a database of system descriptions, supports many different +auto-call units, and understands many nuances required to talk +to non-UNIX systems. Files may be transferred +to and from non-UNIX systems in a simple fashion. +.BP ul +A bug which sometimes caused an extra blank line to +be printed after reaching end of file has been fixed. +.BP uucp +And related programs have been extensively enhanced +to support many different auto-call units and multiple spooling +directories (among other things). A large number of bugs +and performance enhancements have been made. +.BP uusnap +Is a new program which gives a snap-shot of the uucp +spooling area. +.BP vfontinfo +Is a program used to inspect and print information about +fonts. +.BP vgrind +Now uses a regular expression language +to describe formatting. A +.B \-f +flag forces vgrind to act as +a filter, generating output suitable for inclusion in troff +and/or nroff documents. Language descriptions exist for C, Pascal, +Model, C shell, Bourne shell, Ratfor, and Icon programs. +.BP vi +A bug which caused the ^B command to place the cursor on +the wrong line has been fixed. A bug which caused vi to +believe a file had been modified when an i/o error occurred +has been fixed. A bug which allowed ``hardtabs'' to be +set to 0 causing a divide by zero fault has been fixed. +.BP vlp +Is a new program for pretty printing Lisp programs. +.BP vmstat +Has had one new piece of information added to +.B \-s +summary, the number of fast page reclaims performed. +The fields related to paging activity are now all +given in kilobytes. +.BP vpr +And associated programs for spooling and printing files +on Varian and Versatec printers are now shell scripts +which use the new line printer support. +.BP vwidth +Is a new program for making troff width tables for a font. +.BP wc +Is once again identical to the version 7 program. That is, +the \fB\-v\fP, \fB\-t\fP, \fB\-b\fP, \fB\-s\fP, and \fB\-u\fP +flags have been deleted. +.BP whereis +Understands the new directory organization for the source +code. +.BP which +Now understands how to handle aliases. +.BP who +Now displays the remote machine from which a user is +logged in. -- 2.20.1