632 lines
20 KiB
Text
632 lines
20 KiB
Text
Version 4.9.1 (20/08/2023):
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* Support stop/parity bits on serial port (#23952)
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* Add needed system headers in checks and return values
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for implicit function declarations
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* Fixes:
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- Avoid zombies after shell exit (#25089)
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- Missed signal sending permission check on failed
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query messages (CVE-2023-24626)
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- manpage fixes
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- source code fixes during cleanup
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- UTF-8 encoding can emit invalid UTF-8 sequences
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for out of range unicode values (#62097)
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Version 4.9.0 (30/01/2022):
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* Hardstatus option for used encoding (escape string '%e')
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* OpenBSD uses native openpty() from its utils.h
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* Fixes:
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- fix combining char handling that could lead to a segfault
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- CVE-2021-26937: possible denial of service via a crafted UTF-8 character sequence (bug #60030)
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- make screen exit code be 0 when checking --help
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- session names limit is 80 symbols (bug #61534)
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- option -X ignores specified user in multiuser env (bug #37437)
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- a lot of reformations/fixes/cleanups (man page and source code)
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Version 4.8.0 (05/02/2020):
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* Improve startup time by only polling for files to close
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* Fixes:
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- Fix for segfault if termcap doesn't have Km entry
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- Make screen exit code be 0 when checking --version
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- Fix potential memory corruption when using OSC 49
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Version 4.7.0 (02/10/2019):
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* Add support for SGR (1006) mouse mode
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* Add support for OSC 11
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* Update Unicode ambiguous and wide tables to 12.1.0
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* Fixes:
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- cross-compilation support (bug #43223)
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- a lot of manpage fixes and cleanups
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Version 4.6.2 (23/10/2017):
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* Fixes:
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- revert changes to cursor position restore behavour (bug #51832)
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- set freed pointer to NULL (bug #52133)
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- documentation fixes
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- fix windowlist crashes (bug #43054 & #51500)
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Version 4.6.1 (10/07/2017):
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* Fixes:
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- problems with starting session in some cases
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- parallel make install
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- segfault when querying info on nonUTF locale (bug #51402)
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Version 4.6.0 (28/06/2017):
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* Update Unicode wide tables to 9.0 (bug #50044)
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* Support more serial speeds
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* Improved namespaces support
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* Migrate from fifos to sockets
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* Start viewing scrollback at first line of output (bug #49377)
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Version 4.5.1 (25/02/2017):
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* Fixes:
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- logfile permissions problem (CVE-2017-5618)
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- SunOS build problem (bug #50089)
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- FreeBSD core dumps (bug #50143)
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Version 4.5.0 (10/12/2016):
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* Allow specifying logfile's name via command line parameter '-L'
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* Fixes:
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- broken handling of "bind u digraph U+" (bug #48691)
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- crash with long $TERM (bug #48983)
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- crash when bumping blank window
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- build for AIX (bug #49149)
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- %x improperly separating arguments
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- install with custom DESTDIR (bug #48370)
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Version 4.4.0 (19/06/2016):
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* Support up to 24 function keys
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* Fix runtime issues
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* 'logfile' command, starts logging into new file upon changing
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Version 4.3.1 (28/06/2015):
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* Fix resize bug
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Version 4.3.0 (13/06/2015):
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* Introduce Xx string escape showing the executed command of a window
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* Implement dead/zombie window polling, allowing for auto reconnecting
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* Allow setting hardstatus on first line
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* New Commands:
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- 'sort' command sorting windows by title
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- 'bumpleft', 'bumpright' - manually move windows on window list
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- 'collapse' removing numbering 'gaps' between windows, by renumbering
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- 'windows' command now accepts arguments for use with querying
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Version 4.2.1 (28/04/2014):
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* allow for terminal with long $TERM (up to 32 characters)
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* allow to use long logins
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* documentation fixes
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* runtime fixes
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Version 4.2.0 (17/04/2014):
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New Commands:
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* 'unbindall' to unbind all commands
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* 'up', 'down', 'left', 'right' sub-commands for 'focus'
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* 'rendition' to specify rendition to use in caption/hardstatus for window-names that have bell/monitor/silence/so turned on.
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* 'layout', with the following sub-commands
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- 'title'
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- 'number'
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- 'autosave' ('autosave on' or 'autosave off')
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- 'new'
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- 'save' ('save <name>')
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- 'select'
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- 'next'
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- 'prev'
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- 'attach'
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- 'show'
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- 'remove'
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- 'dump'
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* 'group' for moving window(s) into a group.
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* 'defmousetrack' and 'mousetrack', to turn on/off mouse-tracking for
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displays. It's turned off by default. With mouse-tracking turned on, it's
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possible to switch to a region ('focus') using mouse clicks. It's also
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possible to select a text region in copy-mode using a mouse click to place
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a mark and the scroll wheel to scroll through the buffer. Additional
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features might be to allow clicking on window-titles in the caption to
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switch to that window.
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* All commands prefixed '@' are treated as 'quiet', i.e. '@'-prefixed commands
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do not trigger any display messages.
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Changed Commands:
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* '-v' parameter to 'split' command for vertical splits.
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* 'sorendition' deprecated in favour of 'rendition so'.
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* 'digraph' can take a second parameter to specify custom digraphs. For
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example,
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'digraph >= ≥' or 'digraph >= U+2265'
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Using '0' as the second parameter will remove the digraph.
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* 'stuff' will prompt for input if there's nothing to stuff.
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* The argument to ":number" can be prefixed with '+' or '-' to use it as a
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relative argument.
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* '-g' parameter to 'windowlist' to show nested list of windows.
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* '//group' parameter to 'screen' to create a grouped window.
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* 'blankerprg' shows the currently set command on no argument.
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* 'maxwin' can now be used to increase the number of maximum windows.
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.screenrc:
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* $PID expands to the PID of the screen session.
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* $PWD expands to the current working directory of the session.
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* $STY expands to the session name.
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* Tilde-expansion in pathnames (e.g. for the 'source' command)
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* C-style escapes can be used (e.g. "\n" to get a newline with 'stuff')
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* '%p' in caption/hardstatus string expands to the PID of the backend, and
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'%+p' expands to the PID of the frontend (display).
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* '%S' in caption/hardstatus string expands to the session name.
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* '%P' in the caption string evaluates to true if the region is in copy mode.
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* '%E' in the caption string evaluates to true if the escape character has
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currently been pressed.
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Window List:
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* Nested views when there are window groups (with 'windowlist -g').
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* Press 'm' to toggle the most-recent view.
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* Press 'g' to toggle nestedness.
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* Press 'a' to view all windows in the list.
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* Press '/' to search in the list.
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* Press ',' and '.' to re-order windows in the list.
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* Press 'K' to kill a window (requires confirmation).
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Display List:
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* Press 'd' to detach a display, 'D' to power-detach.
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Others:
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* Start using 'ChangeLog' for logging changes again.
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* Terminfo update for 256-color support.
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* Multiple input history (partially from Romain Francoise).
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* vi-like fFtT;, searching in copy mode.
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* In copy mode, search in reverse direction when 'N' is pressed.
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* Tab-completion for command input.
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* Some more readline-like bindings in input mode (e.g. ^W, ^D, ^P, ^N etc.)
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* Fix displaying unicode characters in the caption/hardstatus on UTF8 locale.
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* A revamped displays list (for 'displays' command)
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* Increased default maximum number of windows from 40 to 100.
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* Increased number color/attribute changes in caption/hardstatus string from 16 to 256.
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* Some commands can be remotely queried using the -Q command-line flag.
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In-Progress:
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* Scripting support (thanks to Google Summer of Code 2009 project by Rui Guo)
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Developers:
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* Alexander Naumov <alexander_naumov@opensuse.org>
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* Amadeusz Sławiński <amade@asmblr.net>
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* Juergen Weigert <jw@suse.de>
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* Michael Schroeder <mls@suse.de>
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* Micah Cowan <micah@cowan.name>
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* Sadrul Habib Chowdhury <sadrul@users.sourceforge.net>
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Contributors:
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* Clavelito <maromomo@hotmail.com>
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* Dick <dick@mrns.nl>
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* Gabriel <g2p.code@gmail.com>
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* Benjamin Andresen <bandresen@gmail.com>
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* Takeshi Banse <takebi@laafc.net>
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* Maarten Billemont <lhunath@gmail.com>
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* Curtis Brown <mrbrown8@juno.com>
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* Cyril Brulebois <kibi@debian.org>
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* Trent W Buck <trentbuck@gmail.com>
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* Stephane Chazelas <stephane_chazelas@yahoo.fr>
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* Kees Cook <kees@ubuntu.com>
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* Thomas Dickey <tom@invisible-island.net>
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* Christian Ebert <blacktrash@gmx.net>
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* Geraint Edwards <gedge-lists-screen@yadn.org>
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* Romain Francoise <romain@orebokech.com>
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* Alexander Gattin <xrgtn@yandex.ru>
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* Emanuele Giaquinta <e.giaquinta@glauco.it>
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* Yi-Hsuan Hsin <mhsin@mhsin.org>
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* Kipling Inscore <kinscore@synaptics.com>
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* Chris Jones <cjns1989@gmail.com>
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* Max Kalashnikov <mmt@maxkalashnikov.com>
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* Steve Kemp <steve@steve.org.uk>
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* Ryan Niebur <ryan@debian.org>
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* Jan Christoph Nordholz <hesso@pool.math.tu-berlin.de>
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* William Pursell <bill.pursell@gmail.com>
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* Michael Scherer <misc@mandriva.org>
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* Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
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* Peter Teichman <peter@teichman.org>
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30.10.94
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This is a quick overview of screen's life story. But it is not up
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to date. You'll find more details about the revision history in
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patchlevel.h and newer changes are only documented there.
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31.7.93 -- 3.5.1
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================
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* writelock, number, paste with arg, at, zombie and wall commands added.
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* Access Control Lists and more multi-user support added.
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* select and setenv commands enhanced.
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* socket.c: motorola bugfix.
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* configure.in: --srcdir support.
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* configure.in: recognize alpha and SUNOS3 correctly.
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* doc/screen.texinfo: Documentation by Jason Merrill.
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13.05.93 -- 3.3.3
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=================
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* defautonuke, silence commands added.
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* exec command added.
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* hardcopydir, logdir commands added.
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* Made a superb configure script.
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* BROKEN_PIPE, SOCK_NOT_IN_FS added for braindamaged systems.
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* multi display, multi user support.
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* process command. CS, CE switch cursorkeycap in application mode.
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* lockprg pow_detaches on SIGHUP
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* ins_reg copy_reg commands.
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* new screenrc syntax.
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* split up screen.c and ansi.c
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21.10.92 -- 3.2.9
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================
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* ChangeLog: replaces CHANGES and is in GNUish format.
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* Makefile (CFLAGS, M_CFLAGS, LIBS, OPTIONS): moved user config here,
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merged all Makefiles, GNUified
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* socket.c (FindSocket): ignoring bad files in $SCREENDIR
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* config/config.linux: ported.
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* utmp.c, exec.c, loadav.c: split apart from screen.c/fileio.c
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15.07.92 -- 3.2.8
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=================
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* ansi.c (WriteString): automatic character set switching for 8bit support
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3.2.3-3.2.7
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===========
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* concept changes: Display structure, Multi attacher
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...
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3.2.2
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=====
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* screen.c (main): -m option, "_M_ake always new session", ignore $STY
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* screen.c (main): -Ssessionname
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* fileio.c (RcLine): ^A:sessionname give your session a nicer name.
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* screen.c (main): supporting detached startup via screen -d -m -Ssockname
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* fileio.c (stripdev): moved, could not compile
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* overlay.h: "stackable overlay concept"
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* search.c: vi-like / and ? search AND emacs-like ^S and ^R incremental search
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in scrollback
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* mark.c: I meant BSDI not BSD
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* concept change: struct display and struct newwin introduced.
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* screen.c (main): -v option prints version.
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* screen.c (MakeWindow): ^A:screen /dev/ttya opens a character device
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instead of forking ShellProg with a pty pair.
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3.2.0
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=====
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Ultrix port
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Irix 3.3 SGI port
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shadow password suite supported
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data loss on stdin overflow fixed
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"refresh off" keyword added.
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3.1.1
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------
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Screen is now under the GNU copyleft license. See file COPYING.
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command line option -A. $LINES, $COLUMNS improved.
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C-A : vbellwait <sec>
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XENIX support (Ronald Khoo)
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SYSV has uname() instead of gethostname().
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hpux has setresuid.
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ClearScreen now saves image to scrollback buffer.
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mips has setenv.
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numerous bugfixes.
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3.1 finally released version.
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=============================
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3.0.99: last minute changes:
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----------------------------
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MIPS support (J{rvinen Markku)
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SVR4 support (Marc Boucher)
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secopen() secfopen() calls replace stat/access/open.
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C-a : echo improved.
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'register int'
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Changes up to Screen 3.0 Patchlevel 7
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=====================================
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Better terminfo support: Screen now checks if a termcap/info
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entry which the name "screen.$TERM" does exist. Look in the
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"VIRTUAL TERMINAL" section of the manual for more details.
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Many security improvements.
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ScrollRegion() bug fixed which caused slow scrolling if AL
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or DL was used.
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Pyramid and Ultrix support added. (Tim and Larry)
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ENVIRONMENT support.
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/local/etc/screenrc checks for $SYSSCREENRC
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$HOME/.screenrc checks for $ISCREENRC and $SCREENRC
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/local/screens checks for $ISCREENDIR and $SCREENDIR
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.screenrc understands ${VAR} and $VAR .
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screen 3.0 Patchlevel 6
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=======================
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.screenrc:
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screen now only opens the windows you explicitly ask for.
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If you specify none, you still get one window, of course.
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screen 3.0. Patchlevel 5
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========================
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Ansi prototyping by Christos.
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copy mode: CTRL-U / CTRL-D exchanged. code cleanup.
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changes to screen 3.0 patchlevel 4
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==================================
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markkeys "string"
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allows to rebind the keys used in copy/history mode.
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string is made up of pairs "<oldchar>=<newchar>" which are separated
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by a colon. Oldchar and newchar are either single ascii characters,
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or the two character sequence ^x, where x is an ascii character, or
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a 3 digit octal value prepended with '\'. the string "\040=.:^M=q"
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rebinds '.' to set marks, and the return key will abort copy mode.
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set scrollback 100
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resizes the scrollback history buffer to 100 lines. a default of 50
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is installed.
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A Howard Chu like scrollback history is installed. Many vi-like keys
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are added to the copy mode. The '?' key reports on cursor position.
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screen 3.0 Patchlevel 3
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=======================
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WriteString fixed, it did kill the display variable.
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Yet another LP bugfix.
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non vt100 semi-graphics character support.
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waynes patch fixed
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screen 3.0 Patchlevel 2
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=======================
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wayne patches cursor motion outside scrollregions.
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.screenrc
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monitor on|off
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changes in Screen 3.0 Patchlevel 1
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==================================
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screen -wipe
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^A : set vbell_msg "Wuff Wuff"
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Thousand enhancements: help resizable, copy'n'paste in main
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socket loop, and no more '\0' hackin'. :WS=\E8;%d;%dt:
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screen can now resize windows under sunview.
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^A : set crlf on|off
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effects markroutine join.
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screen learned about sized windows under X
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screen -ls (-d) -q
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quiet option. We count the number of detached (attached) sessions and set
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a return value of 10+n. The -q option inhibits all startup
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warnings/messages. i.e. screen -R -q may return with code 12 or higher
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or start a new/old session.
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pow_detach_msg "text string"
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new command, allows messages, terminal reset, etc. on logout caused
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by pow_detach.
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^A : learned a new keyword "set":
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commands like "login on" , "vbell off", ... affect the default for
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windows to be created. But commands like "set login off" affect
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the actual setting of this window. and not the default.
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such commands may be bound to keys. example:
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bind 'O' set login off
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is valid in your .screenrc as well as typed at the ':' prompt.
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a bonus is ":set all" which is synonym to ":help".
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At the Colon prompt also KeyNames can be entered, although that makes
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not always sense.
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^A x uses a builtin lockprg, if
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a) we don't find our lockprg, or
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b) user supplies us with the environment variable LOCKPRG set to "builtin"
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the builtin locks until your login password is typed. on systems using
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"shadow password files" you are prompted for a password.
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markroutine can append joined.
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screen removes the "controlling tty" from utmp while ptys are attached.
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markroutine performs CR+NL when '\n' is pressed
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screen may die quietly, when no TERMCAP entry for "screen" is
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found, and screen is run under X-windows
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_SEQUENT_ marks sequent386_ptx
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screen runs now under SunOS4.1.1 (we need setsid()!).
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bug in SetForeWindow fixed.
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rare markroutine bug fixed.
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we don't open every file the attacher tells us.
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we have now our wonderful "Wuff, Wuff" visual_bell
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we have now the interprocess-communication-buffer. secure version.
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'^A =' removes the interprocess-communication-buffer.
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markroutine as in 2.1
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|
|
|
markroutine: 'a' toggles append mode,
|
|
'>' like ' ', but immediately WriteFile(DUMP_EXCHANGE) then.
|
|
'A' like ' ', but first switch to append mode.
|
|
|
|
.screenrc understands "screen 2:faui09 rlogin faui09 -l jnweiger"
|
|
and "password none"
|
|
and "vbell [on|off]"
|
|
|
|
'^A :' allows .screenrc commands "online".
|
|
|
|
screen now receives new $TERM from attacher, when it is reattached
|
|
|
|
MakeClientSocket() fifo version does now test for access.
|
|
|
|
.screenrc learns "hardstatus {on|off}"
|
|
|
|
termcap's VB is used for vbell if available.
|
|
|
|
Attach() code rewritten:
|
|
screen now lists socket directory, if it does not find a suitable socket
|
|
screen -d [host.tty] detaches a running screen.
|
|
|
|
screen -[ls|list]
|
|
list all sockets that we find in our sockdir
|
|
|
|
when the socket has been removed, send a SIGCHLD to the poor SCREEN
|
|
process and it will try to recover. then try a 'screen -r' again.
|
|
all the socket stuff lives now in an extra file.
|
|
|
|
Major changes in version 2.4:
|
|
=============================
|
|
|
|
* Test version that presents the erlangen extensions from 2.0 in a 2.3
|
|
screen.
|
|
|
|
* window resize support
|
|
|
|
* screen locking C-a x
|
|
|
|
* support for SYSV
|
|
|
|
* password protection
|
|
|
|
* copy & paste across screens
|
|
|
|
* remote detach and power detach
|
|
|
|
Major changes in version 2.3:
|
|
|
|
* Terminal emulation has been significantly enhanced and bugfixed.
|
|
|
|
* We now fully update the last character on the screen for true auto-
|
|
margin terminals, though there may be some delay before the character
|
|
can be safely added to the screen. If your terminal has character
|
|
insert it will be used to shorten the delay.
|
|
|
|
* Added the "termcap" .screenrc command to tweak your terminal's termcap
|
|
entry AND to customize the termcap generated for the virtual terminals.
|
|
See also the -L and -O command-line options, and the SCREENCAP environ-
|
|
ment variable.
|
|
|
|
* Fixed screen's character handling when detached or suspended to NOT block
|
|
the child processes in their windows -- output continues to be processed
|
|
in the background.
|
|
|
|
* Added a.k.a.s (window-name aliases) that allow you to customize the
|
|
window-information line, including being able to change the name on-
|
|
the-fly to reflect what's currently running in the window (see the
|
|
-k option, shellaka command, and ALSO KNOWN AS discussion in the doc).
|
|
|
|
* Added the ability to log the output of a window to a file (see the
|
|
"C-a H" (log) command).
|
|
|
|
* Flow-control can now be set for each window and switched interactively
|
|
(see the "flow" command, -f option, and FLOW CONTROL discussion).
|
|
|
|
* Individual windows can be included or excluded from mention in the
|
|
/etc/utmp file (see the "login" command and -l option).
|
|
|
|
* Added an activity monitor, which allows you to have a window watched for
|
|
the start of any output and alert you when it occurs (see the "C-a M"
|
|
(monitor) command).
|
|
|
|
* Enhanced the information in the window-information line to keep track of
|
|
windows that have: logging turned on '(L)'; beeped in the background '!';
|
|
became active while being monitored '@' (see the "C-a w" (windows) command).
|
|
|
|
* Added an on-line help display that lists all the commands and their
|
|
key bindings (see the "C-a ?" (help) command).
|
|
|
|
* Extended handling of the beep message (and also the new activity message)
|
|
to allow '~' to specify a literal beep (see the "beep" and "activity"
|
|
.screenrc commands).
|
|
|
|
* You can now set the default action on receipt of a hangup signal: detach
|
|
or terminate (see the "autodetach" .screenrc command).
|
|
|
|
* Routing of characters to their virtual terminals has been enhanced to
|
|
not drop characters nor (in rare circumstances) hang up screen.
|
|
|
|
* The NFS compatibility has been enhanced.
|
|
|
|
Major changes in version 2.0a:
|
|
|
|
* Screen allows you to `detach' the "screen" session from the physical
|
|
terminal and resume it at a later point in time (possibly on a
|
|
different terminal or in a different login session).
|
|
|
|
To get an impression of this functionality do the following:
|
|
|
|
- call "screen" and create a couple of windows
|
|
- type Control-A Control-D (screen terminates; you are back
|
|
in the shell)
|
|
- call "screen -r" to resume the detached screen
|
|
|
|
* Screen supports multiple character sets and the ISO 2022 control
|
|
functions to designate and switch between character sets.
|
|
This allows you, for instance, to make use of the VT100 graphics
|
|
character set or national character sets.
|