XPost: comp.unix.shell, de.comp.os.unix.shell

Announcing: KornShell 93u+m 1.0.0-rc.1
Readme: https://github.com/ksh93/ksh/tree/1.0#readme
Get it: https://github.com/ksh93/ksh/releases/tag/v1.0.0-rc.1

We're nearly there!

I intend to release ksh 93u+m/1.0.0 on 2022-08-01, precisely ten years
after the last canonical 93u+ release.

We have a week until then, so here's a release candidate. Please try to
break it. I particularly want to hear about any compatibility problems
with existing scripts. Help fixing known bugs is also very much wanted.

CONTRIBUTORS

Main developers: Martijn Dekker, Johnothan King, hyenias

Direct contributors: Andy Fiddaman, Anuradha Weeraman, atheik, Chase,
Finnbarr P. Murphy, George Lijo, Govind Kamat, Harald van Dijk, Lev
Kujawski, Marc Wilson, Ryan Schmidt, Sterling Jensen, Trey Valenta, vmihalko

All applicable third-party OS distribution patches from OpenSUSE, Red
Hat and Solaris have been merged. These are detailed and acknowledged
here:
https://github.com/ksh93/ksh/wiki#upstreamed-third-party-ksh-93u-patches

Many fixes have also been backported from the AT&T 93v- beta as well as
the former ksh2020 project lead by Kurtis Rader and Siteshwar Vashisht;
we appreciate and benefit from their work. Many thanks also to Siteshwar
for graciously donating his 'ksh93' GitHub organisation account!

HOW TO GET IT

Please download the source code tarball from our GitHub releases page:
https://github.com/ksh93/ksh/releases
To build, follow the instructions in README.md or src/cmd/ksh93/README.

HOW TO GET INVOLVED

To report a bug, please open an issue at our GitHub page (see above). Alternatively, email me at martijn@inlv.org with your report. To get
involved in development, read the brief policy information in README.md
and then jump right in with a pull request or email a patch. See the
TODO file in the top-level directory for a to-do list.

### MAIN CHANGES between 1.0.0-beta.2 and 1.0.0-rc.1 ###

New features in built-in commands:

- Two bash-like flags for 'whence' were backported from ksh 93v-:
- 'whence -P/type -P' is an alias to the existing -p flag.
- 'whence -t/type -t' will print only the type of a command in a simple
format that is designed to be easy to use for scripts. Example:
$ type -t typeset; whence -t sh
builtin
file

- Added three options to the ulimit builtin with the same names and
functionality as in Bash:
- 'ulimit -k' sets the maximum number of kqueues.
- 'ulimit -P' sets the maximum number of pseudo-terminals.
- 'ulimit -R' sets the maximum time in microseconds a real-time process
can run before blocking.
Note that to use these options the operating system must support the
corresponding resource limit.

- 'typeset' has a new '-g' flag that forces variables to be created or
modified at the global scope regardless of context, as on bash 4.2+.

New command line editor features:

- Various keys on extended PC keyboards are now handled as expected in the
emacs and vi built-in line editors: Ctrl or Alt + left or right arrow (go
back or forward one word), Ctrl+G (cancel reverse search), Ctrl+Delete
(delete next word). In addition, the Insert key now escapes the next
character in emacs and enters insert mode in vi, and the arrow keys are
recognized on more terminals.

New features in shell options:

- A new --functrace long-form shell option causes the -x/--xtrace option's
state and the DEBUG trap action to be inherited by function scopes
instead
of being reset to default. Changes made to them within a function scope
still do not propagate back to the parent scope. Similarly, this option
also causes the DEBUG trap action to be inherited by subshells.

- The new --histreedit and --histverify options modify history expansion
(--histexpand). If --histreedit is on and a history expansion fails, the
command line is reloaded into the next prompt's edit buffer, allowing
corrections. If --histverify is on, the results of a history
expansion are
not immediately executed but instead loaded into the next prompt's edit
buffer, allowing further changes.

- When the -b/--notify shell option is on and the vi or emacs/gmacs shell
line editor is in use, 'Done' and similar notifications from completed
background jobs are now inserted directly above the line you're typing,
without affecting your command line display.


--
|| modernish -- harness the shell
|| https://github.com/modernish/modernish
||
|| KornShell lives!
|| https://github.com/ksh93/ksh

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