+.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 <sys/ttychars.h>.
+.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.
projects / unix-history / commitdiff