*** Version # 1.18 18-Sep-85 16:48:49 sventek
Modified errf, inf, and outf to remove bugs in compound conditionals.  The
code was written using & and | as if they satisfied the && and || semantics
provided by C.  Such code has now been broken up into nested if's.

*** Version # 1.17 17-Apr-84 17:04:38 sventek
Added shift built-in function for use in scripts.  Required changes to
shdef, hshdef, eshdef, shflag, sh.r`initsh, sh.r`param, sh.r`shcom and
sh.r`shellc.  An example usage is the following rewrite of the script
context.sh

param file $1
shift
find <$file "%#-h-" "$@" | fb "-s%#-h-" "$@"

The first parameter to the script is the archive file name, with all
subsequent parameters patterns to look for.  The shift invocation causes
the existence of the original $1 to be masked, and use of the "$@"
construct permits blanks to be embedded in the original pattern.

*** Version # 1.16 16-Apr-84 14:32:30 sventek
Fixed some bugs in the $* and $@ expansions.  Affected modules are shflag,
sh.r`initsh and sh.r`param.

*** Version # 1.15 21-Mar-84 09:24:29 sventek
The shell now permits a "-pprompt string" flag on the command line.
This, coupled with the modification to logpmt to permit '!' in the
prompt string to be replaced by the line number, permits the user to
have prompts which have the line number in the history embedded.

*** Version # 1.14 01-Aug-83 09:49:30 tools
Restored hshdef to conditionalize the definition of internal commands
upon the existence of LARGE_ADDRESS_SPACE.  This was changed on RSX
when the memory-overlaid version of the history shell was being
developed, to the detriment of functionality on non-RSX systems.

*** Version # 1.13 16-Jun-83 10:59:46 sventek
Replaced runtime calls to `impath' with static declaration of search
path using STD_PATH.

*** Version # 1.12 15-Jun-83 15:25:22 sventek
Removed trailing periods from quoted strings, as they are no longer needed.

*** Version # 1.11 13-Jun-83 12:27:49 sventek
Converted references to `select' to `switch'.

*** Version # 1.10 04-Feb-83 15:09:52 sventek
Made appropriate modifications to permit the memory-overlaid version
of the history shell (with aliases) to be build for RSX-11M.  The modules
affected were:

1. hshdef had the conditional on LARGE_ADDRESS_SPACE removed.
2. sh.w`sh.r`dask was modified to call Prompt instead of prompt.  This was
   after much soul searching to determine whether the response to the ask
   command should be recorded in the history.  It was finally decided NOT!
3. hsh.tkb and hsh.odl were added to reflect the current situation.  A
   future update to these files will be necessary to  permit these files
   to be constructed during toolgen from the information contained in the
   tools.tkb file.

*** Version # 1.9 13-Jan-83 14:57:32 sventek
Modified routines `shcom', `dask' and `procdf' to reflect the new
multi-statement syntax in clauses in the for statement.

*** Version # 1.8 16-Dec-82 18:20:19 sventek
Modified sh.r`param to conditionally include code to prevent gobbling
of the '$' when the token found immediately after the $ is not defined.
An expression of the form $<digit> is still replaced by nothing if it
is not defined.  The code to support this is conditionalized on the
symbol KEEP_DOLLARS.  A commented define for this symbol was added to
sh.r`defns, such that enabling the feature is simple.  This is a generalization
of a modification made by Dave Martin.  This feature has great value on
VMS, where many of the system logical names have '$' in them.

*** Version # 1.7 24-Nov-82 15:52:54 sventek
Added additional support for the following shell commands
alias ask param unalias unparam source
Also performed quite a bit of general cleanup on the code.
Modified documentation to track the source changes.

*** Version # 1.6 23-Nov-82 11:14:51 sventek
Modified several routines to support the new shell commands param, alias
and ask.  Added definition file shdef to be used when building sh, and
modified hshdef and eshdef to define DO_PARAM to enable these new features.
The aliases or parameters are not exported to children, although that is
an obvious next step.  The files affected are:
sh.w`shcmd, sh.w`shflag, sh.w`shdef (new), sh.w`hshdef, sh.w`eshdef,
sh.w`sh.r`cmdtyp, sh.w`sh.r`initsh, sh.w`sh.r`shcom and sh.w`sh.r`shellc.

*** Version # 1.5 02-Nov-82 13:32:07 sventek
Modified sh.w`sh.r`defns to reduce the symbols TREESIZE and MAXTOK if
DO_STARTUP is defined.  This is to permit hsh to fit on RSX-11M.

*** Version # 1.4 01-Nov-82 19:09:40 sventek
Made appropriate modifications to convert all occurrences of the string
''' to the string '@''.  The previous form is now a syntax error, due to
the extension to ratfor to permit "'" to be used as a quoted string
delimiter

*** Version # 1.3 25-Oct-82 11:39:15 sventek
Experienced problems with inheritance of redirection for STDOUT and ERROUT
for parenthesized commands.  In particular:

(first; second) >>file

expanded into

first >>file
second >>>file

Also noticed problems with initialization of redirection stuff, such that
if a parenthesized command failed in mid-command, the next command could
experience incorrect redirection behavior.

To fix this, modified the following files:
sh.w`stdsub
sh.w`sh.r`dosemi
sh.w`sh.r`errf
sh.w`sh.r`execut
sh.w`sh.r`outf

*** Version # 1.2 09-Apr-82 10:46:02 j
Reordered the statements in sh.w`sh.r`rlogin to conform with normal
statement ordering.  Moved the string declaration after all other
declarations and before the first executable statement.

*** Version # 1.1 25-Mar-82 12:13:36 v1.1
Version 1.1 is the Spring 1982 Distribution of the LBL/Hughes release
of the Software Tools Virtual Operating System software and documentation.