linux display screens in stock
Brief: In this guide, we will discuss some useful examples of the screen command. By the end of this guide, users will be able to work with multiple shell sessions using a single Linux terminal window.
As Linux users, we often need to work on long-running tasks, such as – downloading or copying large files, executing time-consuming database queries, and so on. Sometimes these important tasks get terminated abruptly due to a session timeout.
In this guide, we will discuss how to install, configure, and use the screen command on a Linux system. Throughout this guide, we will understand the usage and benefits of the screen command using practical examples.
On my Ubuntu Server Edition, the screen command has been installed by default. But, Linux Mint does not have a screen installed by default, so I need to install it first using the
Sometimes it is important to record what you have done while you are in the console. Let’s say you are a Linux Administrator who manages a lot of Linux servers.
With this screen logging, you don’t need to write down every single command that you have done. To activate the screen logging function, just press “Ctrl-A” and “H“. (Please be careful, we use a capital ‘H’ letters. Using non-capital ‘h’, will only create a screenshot of the screen in another file named hardcopy).
A Password will be asked to you twice. The first password is your Linux password, and the second password is the password that you put in your .screenrc file.
Note: Mop obtains the latest stock quotes via Yahoo! Finance API. Be aware that their stock quotes are known to be delayed by 15 minutes. So if you are looking for real-time stock quotes with zero delay, Mop is not a tool for you. Such live stock quote feeds are usually available for a fee via some proprietary closed-door interface. With that being said, let"s see how you can use Mop under Linux environment.
Since Mop is implemented in Go, you will need to install Go language first. If you don"t have Go installed, follow this guide to install Go on your Linux platform. Make sure to set GOPATH environment variable as described in the guide.
Screen is a terminal program in Linux which allows us to use a virtual (VT100 terminal) as full-screen window manager which multiplexes an open physical terminal between multiple processes, which are typically, interactive shells. It allows us to access multiple terminal sessions within a single terminal or a remote terminal session. It is most useful when addressing multiple Linux shell commands on the command line, as well as separating commands from the shell that started the commands.
This output typically shows us the currently running screens. As you can see by the "(Attached)" output, the 26092 session is currently attached to a terminal. Since this screen is currently attached, we can detach it remotely using this command.
The "C-a w" key sequence displays a list of all screen windows. The unique ID of each window, along with its name, and running process is displayed, for each individual window. The current window will be marked with an asterisk (*).
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Preferred by developers, Ubuntu"s flexibility allows you to do more. Together with tools for deployment, provisioning, and over the air updates, you can get your smart display up and running in a matter of seconds. Simple integration so you can focus on business value.
Give your screens the uptime and robustness they need, while simplifying the integration of your graphic application. From security to fleet management, with Ubuntu you can unlock:
When someone needs to share their screen with you, or you need to share your screen with someone else, you have several options to choose from. Video conferencing software, like the open source Jitsi web app, and while we call that "screen sharing," it"s really presenting. You"re presenting your screen to others, but they can"t interact with it. Sometimes you actually want to share your screen and your mouse cursor with a trusted friend or colleague, and the tool for that is VNC (Virtual Network Computing), and it"s built into your Linux desktop.
On Fedora, CentOS, Mageia, and many other Linux distributions, you have a firewall whether you know it or not. You may not yet have an app to help you configure your firewall, though. To install the default firewall configuration application, launch GNOME Software and search for firewall.
On Debian, Ubuntu, Linux Mint, and others, you may be running a firewall called ufw, so install gufw instead. In gufw, click the plus (+) icon at the bottom of the Rules tab to add a new rule. In the Add a new firewall rure window that appears, search for vnc and click the Add button.
Using screen, you can create multiple terminal sessions, switch between them, and display them next to each other, all within a single terminal window.
When screen is called, it creates a single window with a shell in it (or the specified command) and then gets out of your way so that you can use the program as you normally would. Then, at any time, you can create new (full-screen) windows with other programs in them (including more shells), kill existing windows, view a list of windows, turn output logging on and off, copy-and-paste text between windows, view the scrollback history, switch between windows in whatever manner you want, etc. All windows run their programs completely independent of each other. Programs continue to run when their window is currently not visible and even when the whole screen session is detached from the user"s terminal. When a program terminates, screen (per default) kills the window that contained it. If this window was in the foreground, the display switches to the previous window; if none are left, screen exits.
include all capabilities (with some minor exceptions) in each window"s termcap, even if screen must redraw parts of the display to implement a function.
causes the interrupt key (usually C-c) to interrupt the display immediately when flow-control is on. See the "defflow" .screenrc command for details. The use of this option is discouraged.
Attach to a not detached screen session. (Multi display mode). Screen refuses to attach from within itself. But when cascading multiple screens, loops are not detected; careful!
If you"re impatient and want to get started, remember this one command: "C-a ?". Typing these two characters display a list of the available screen commands and their bindings. Each keystroke is discussed in the Default Key Bindings section. The Customization section deals with the contents of your .screenrc.
Toggle to the window displayed previously. Note that this binding defaults to the command character typed twice, unless overridden. For instance, if you use the option "-e]x", this command becomes "]]".
The "socket directory" defaults either to $HOME/.screen or to /tmp/screens or preferably to /var/run/screen chosen at compile-time. If screen is installed setuid-root, then the administrator should compile screen with an adequate (not NFS mounted) socket directory. If screen is not running setuid-root, the user can specify any mode 700 directory in the environment variable $SCREENDIR.
Remove a user from screen"s access control list. If currently attached, all the user"s displays are detached from the session. He cannot attach again. Multi user mode only.
When any activity occurs in a background window that is being monitored, screen displays a notification in the message line. The notification message can be re-defined by means of the "activity" command. Each occurrence of "%" in message is replaced by the number of the window where activity has occurred, and each occurrence of "^G" is replaced by the definition for bell in your termcap (usually an audible bell). The default message is "Activity in window %n".
Execute a command at other displays or windows as if it had been entered there. "At" changes the context (the "current window" or "current display" setting) of the command. If the first parameter describes a non-unique context, the command will be executed multiple times. If the first parameter is of the form "identifier*" then identifier is matched against user names. The command is executed once for each display of the selected user(s). If the first parameter is of the form "identifier%" identifier is matched against displays. Displays are named after the ttys they attach. The prefix "/dev/" or "/dev/tty" may be omitted from the identifier. If identifier has a "#" or nothing appended it is matched against window numbers and titles. Omitting an identifier in front of the "#", "*" or "%"-character selects all users, displays or windows because a prefix-match is performed. Note that on the affected display(s) a short message will describe what happened. Permission is checked for initiator of the "at" command, not for the owners of the affected display(s). Note that the "#" character works as a comment introducer when it is preceded by whitespace. This can be escaped by prefixing a "\". Permission is checked for the initiator of the "at" command, not for the owners of the affected display(s).
Caveat: When matching against windows, the command is executed at least once per window. Commands that change the internal arrangement of windows (like "other") may be called again. In shared windows the command will be repeated for each attached display. Beware, when issuing toggle commands like "login". Some commands (e.g., "process") require that a display is associated with the target windows. These commands may not work correctly under "at" looping over windows.
Change background-color-erase setting. If "bce" is set to on, all characters cleared by an erase/insert/scroll/clear operation will be displayed in the current background color. Otherwise, the default background color is used.
When a bell character is sent to a background window, screen displays a notification in the message line. The notification message can be re-defined by this command. Each occurrence of "%" in message is replaced by the number of the window where a bell is sent, and each occurrence of "^G" is replaced by the definition for bell in your termcap (usually an audible bell). The default message is "Bell in window %n".
would bind the space key to the command that displays a list of windows (so that the command usually invoked by "C-a C-w" would also be available as "C-a space"). The next three lines remove the default kill binding from "C-a C-k" and "C-a k". "C-a K" is then bound to the kill command. Then it binds "C-f" to the command "create a window with a TELNET connection to foobar", and bind "escape" to the command that creates an non-login window with a.k.a. "root" in slot #9, with a superuser shell and a scrollback buffer of 1000 lines.
Choose one of the available methods of generating a break signal for terminal devices. This command should affect the current window only. But it still behaves identical to "defbreaktype". This will be changed in the future. Calling "breaktype" with no parameter displays the break method for the current window.
This command controls the display of the window captions. Normally a caption is only used if more than one window is shown on the display (split screen mode). But if the type is set to always screen shows a caption even if only one window is displayed. The default is splitonly.
Same as the autonuke command except that the default setting for new displays is changed. Initial setting is "off". Note that you can use the special "AN" terminal capability if you want to have a dependency on the terminal type.
Choose one of the available methods of generating a break signal for terminal devices. The preferred methods are tcsendbreak and TIOCSBRK. The third, TCSBRK, blocks the complete screen session for the duration of the break, but it may be the only way to generate long breaks. Tcsendbreak and TIOCSBRK may or may not produce long breaks with spikes (e.g., 4 per second). This is not only system-dependent, this also differs between serial board drivers. Calling "defbreaktype" with no parameter displays the current setting.
The hardstatus line that all new windows get is set to status. This command is useful to make the hardstatus of every window display the window number or title or the like. Status may contain the same directives as in the window messages, but the directive escape character is "^E" (octal 005) instead of "%". This was done to make a misinterpretation of program generated hardstatus lines impossible. If the parameter status is omitted, the current default string is displayed. Per default the hardstatus line of new windows is empty.
Same as the obuflimit command except that the default setting for new displays is changed. Initial setting is 256 bytes. Note that you can use the special "OL" terminal capability if you want to have a dependency on the terminal type.
Creates another shell in the same window, while the original shell is still running. Output of both shells is displayed and user input is sent to the new /bin/sh.
Change the window size to the size of the current region. This command is needed because screen doesn"t adapt the window size automatically if the window is displayed more than once.
Writes out the currently displayed image to the file file, or, if no file name is specified, to hardcopy.n in the default directory, where n is the number of the current window. This either appends or overwrites the file if it exists. If the option -h is specified, dump also the contents of the scrollback buffer.
This command configures the use and emulation of the terminal"s hardstatus line. The first form toggles whether screen uses the hardware status line to display messages. If the flag is set to "off", these messages are overlaid in reverse video mode at the display line. The default setting is "on".
The second form tells screen what to do if the terminal doesn"t have a hardstatus line (i.e., the termcap/terminfo capabilities "hs", "ts", "fs" and "ds" are not set). If the type "lastline" is used, screen reserves the last line of the display for the hardstatus. "message" uses screen"s message mechanism and "ignore" tells screen never to display the hardstatus. If you prepend the word "always" to the type (e.g., "alwayslastline"), screen uses the type even if the terminal supports a hardstatus.
The third form specifies the contents of the hardstatus line. "%h" is used as default string, i.e., the stored hardstatus of the current window (settable via "ESC]0;
Set the display height to a specified number of lines. When no argument is given it toggles between 24 and 42 lines display. You can also specify a width if you want to change both values. The -w option tells screen to leave the display size unchanged and set the window size, -d tells screen to do vice versa.
Not really an online help, but displays a help screen showing you all the key bindings. The first pages list all the internal commands followed by their current bindings. Subsequent pages display the custom commands, one command per key. Press space when you"re done reading each page, or return to exit early. All other characters are ignored. If the "-c" option is given, display all bound commands for the specified command class. See also "DEFAULT KEY BINDINGS" section.
Sets a command that is run after the specified number of seconds inactivity is reached. This command will normally be the "blanker" command to create a screen blanker, but it can be any screen command. If no command is specified, only the timeout is set. A timeout of zero (or the special timeout off) disables the timer. If no arguments are given, the current settings are displayed.
Uses the message line to display some information about the current window: the cursor position in the form "(column,row)" starting with "(1,1)", the terminal width and height plus the size of the scrollback buffer in lines, like in "(80,24)+50", the current state of window XON/XOFF flow control is shown like this (See also section FLOW CONTROL):
The current line wrap setting ("+wrap" indicates enabled, "-wrap" not) is also shown. The flags "ins", "org", "app", "log", "mon" or "nored" are displayed when the window is in insert mode, origin mode, application-keypad mode, has output logging, activity monitoring or partial redraw enabled.
Additional modes depending on the type of the window are displayed at the end of the status line (See also section "WINDOW TYPES"). If the state machine of the terminal emulator is in a non-default state, the info line is started with a string identifying the current state. For system information use the "time" command.
Kill current window. If there is an "exec" command running then it is killed. Otherwise, the process (shell) running in the window receives a HANGUP condition, the window structure is removed and screen (your display) switches to another window. When the last window is destroyed, screen exits. After a kill screen switches to the previously displayed window. Note: Emacs users should keep this command in mind, when killing a line. It is recommended not to use "C-a" as the screen escape key or to rebind kill to "C-a K".
Redisplay the last contents of the message/status line. Useful if you"re typing when a message appears, because the message goes away when you press a key (unless your terminal has a hardware status line). Refer to the commands "msgwait" and "msgminwait" for fine tuning.
Lock this display. Call a screenlock program (/local/bin/lck or /usr/bin/lock or a built-in if no other is available). screen does not accept any command keys until this program terminates. Meanwhile processes in the windows may continue, as the windows are in the "detached" state. The screenlock program may be changed through the environment variable $LOCKPRG (which must be set in the shell from which screen is started) and is executed with the user"s uid and gid. Warning: When you leave other shells unlocked and you have no password set on the screen, the lock is void: One could easily re-attach from an unlocked shell. This feature should rather be called "lockterminal".
Toggles activity monitoring of windows. When monitoring is turned on and an affected window is switched into the background, you will receive the activity notification message in the status line at the first sign of output and the window is also marked with an "@" in the window-status display. Monitoring is initially off for all windows.
Tell screen how to deal with user interfaces (displays) that cease to accept output. This can happen if a user presses ^S or a TCP/modem connection gets cut but no hangup is received. If nonblock is off (this is the default) screen waits until the display restarts to accept the output. If nonblock is on, screen waits until the timeout is reached (on is treated as 1s). If the display still doesn"t receive characters, screen will consider it "blocked" and stop sending characters to it. If at some time it restarts to accept characters, screen will unblock the display and redisplay the updated window contents.
If the output buffer contains more bytes than the specified limit, no more data will be read from the windows. The default value is 256. If you have a fast display (like xterm), you can set it to some higher value. If no argument is specified, the current setting is displayed.
Defines whether the display should be refreshed (as with redisplay) after switching to the current window. This command only affects the current window. To immediately affect all windows use the allpartial command. Default is "off", of course. This default is fixed, as there is currently no defpartial command.
Write the (concatenated) contents of the specified registers to the stdin queue of the current window. The register "." is treated as the paste buffer. If no parameter is given the user is prompted for a single register to paste. The paste buffer can be filled with the copy, history and readbuf commands. Other registers can be filled with the register, readreg and paste commands. If paste is called with a second argument, the contents of the specified registers is pasted into the named destination register rather than the window. If "." is used as the second argument, the displays paste buffer is the destination. Note, that "paste" uses a wide variety of resources: Whenever a second argument is specified no current window is needed. When the source specification only contains registers (not the paste buffer) then there need not be a current display (terminal attached), as the registers are a global resource. The paste buffer exists once for every user.
If cmd is not an empty string, screen will not use the terminal capabilities "po/pf" if it detects an ANSI print sequence ESC [ 5 i, but pipe the output into cmd. This should normally be a command like "lpr" or ""cat > /tmp/scrprint"". printcmd without a command displays the current setting. The ANSI sequence ESC \ ends printing and closes the pipe. Warning: Be careful with this command! If other user have write access to your terminal, they are able to fire off print commands.
Rename the current session. Note, that for "screen -list" the name shows up with the process-id prepended. If the argument "name" is omitted, the name of this session is displayed. Caution: Among other problems, the $STY environment variable still reflects the old name. Use of this command is strongly discouraged. Use the "-S" command line option if you need this feature. The default is constructed from the tty and hostnames.
Split the current region into two new ones. All regions on the display are resized to make room for the new region. The blank window is displayed on the new region. Splits are made horizontally unless -v is used. Use the "remove" or the "only" command to delete regions. Use "focus" to toggle between regions.
Substitute the user of a display. The command prompts for all parameters that are omitted. If passwords are specified as parameters, they have to be specified un-crypted. The first password is matched against the systems passwd database, the second password is matched against the screen password as set with the commands "acladd" or "password". "Su" may be useful for the screen administrator to test multiuser setups. When the identification fails, the user has access to the commands available for user nobody. These are "detach", "license", "version", "help" and "displays".
Uses the message line to display the time of day, the hostname, and the load averages over 1, 5, and 15 minutes (if this is available on your system). For window specific information use "info".
Change the encoding used in the current window. If utf8 is enabled, the strings sent to the window will be UTF-8 encoded and vice versa. Omitting the parameter toggles the setting. If a second parameter is given, the display"s encoding is also changed (this should rather be done with screen"s "-U" option). See also "defutf8", which changes the default setting of a new window.
Sets the visual bell setting for this window (the screen gives a visual indicator where it would usually sound a bell). Omitting the parameter toggles the setting. If vbell is switched on, but your terminal does not support a visual bell, a "vbell-message" is displayed in the status line when the bell character (^G) is received. Visual bell support of a terminal is defined by the termcap variable "vb" (terminfo: "flash"). Per default, vbell is off, thus the audible bell is used. See also "bell_msg".
Toggle the window width between 80 and 132 columns or set it to cols columns if an argument is specified. This requires a capable terminal and the termcap entries "Z0" and "Z1". See the "termcap" command for more information. You can also specify a new height if you want to change both values. The -w option tells screen to leave the display size unchanged and set the window size, -d vice versa.
Display all windows in a table for visual window selection. The desired window can be selected via the standard movement keys (see the "copy" command) and activated via the return key. If the -b option is given, screen switches to the blank window before presenting the list, so that the current window is also selectable. The -m option changes the order of the windows, instead of sorting by window numbers screen uses its internal most-recently-used list.
The table format can be changed with the string and title option, the title is displayed as table heading, while the lines are made using the string setting. The default setting is "Num Name%=Flags" for the title and "%3n %t%=%f" for the lines. See the "STRING ESCAPES" section for more codes (e.g., color settings).
Uses the message line to display a list of all the windows. Each window is listed by number with the name of process that was started in the window (or its title); the current window is marked with a "*"; the previous window is marked with a "-"; all the windows that are "logged in" are marked with a "$"; a background window with a bell is marked with a "!"; a background window that is being monitored and has had activity occur is marked with an "@"; a window which has output logging turned on is marked with "(L)"; windows occupied by other users are marked with "&"; windows in the zombie state are marked with "Z". If this list is too long to fit on the terminal"s status line only the portion around the current window is displayed.
screen displays informational messages and other diagnostics in a message line. While this line is distributed to appear at the bottom of the screen, it can be defined to appear at the top of the screen during compilation. If your terminal has a status line defined in its termcap, screen uses this for displaying its messages, otherwise a line of the current screen will be temporarily overwritten and output will be momentarily interrupted. The message line is automatically removed after a few seconds delay, but it can also be removed early (on terminals without a status line) by beginning to type.
pad the string to the display"s width (like TeX"s hfill). If a number is specified, pad to the percentage of the window"s width. A "0" qualifier tells screen to treat the number as absolute position. You can specify to pad relative to the last absolute pad position by adding a "+" qualifier or to pad relative to the right margin using "-". The padding truncates the string if the specified position lies before the current position. Add the "L" qualifier to change this.
The available windows centered at the current window and truncated to the available width. The current window is displayed white on blue. This can be used with "hardstatus alwayslastline".
If you"re running with flow-control enabled and find that pressing the interrupt key (usually C-c) does not interrupt the display until another 6-8 lines have scrolled by, try running screen with the "interrupt" option (add the "interrupt" flag to the "flow" command in your .screenrc, or use the -i command-line option). This causes the output that screen has accumulated from the interrupted program to be flushed. One disadvantage is that the virtual terminal"s memory contains the non-flushed version of the output, which in rare cases can cause minor inaccuracies in the output. For example, if you switch screens and return, or update the screen with "C-a l" you would see the version of the output you would have gotten without "interrupt" being on. Also, you might need to turn off flow-control (or use auto-flow mode to turn it off automatically) when running a program that expects you to type the interrupt character as input, as it is possible to interrupt the output of the virtual terminal to your physical terminal when flow-control is enabled. If this happens, a simple refresh of the screen with "C-a l" will restore it. Give each mode a try, and use whichever mode you find more comfortable.
You can customize each window"s name in the window display (viewed with the "windows" command (C-a w)) by setting it with one of the title commands. Normally the name displayed is the actual command name of the program created in the window. However, it is sometimes useful to distinguish various programs of the same name or to change the name on-the-fly to reflect the current state of the window.
One thing to keep in mind when adding a null title-escape-sequence to your prompt is that some shells (like the csh) count all the non-control characters as part of the prompt"s length. If these invisible characters aren"t a multiple of 8 then backspacing over a tab results in an incorrect display. One way to get around this is to use a prompt like this:
When the "po" and "pf" capabilities are present in the terminal"s termcap entry, applications running in a screen window can send output to the printer port of the terminal. This allows a user to have an application in one window sending output to a printer connected to the terminal, while all other windows are still active (the printer port is enabled and disabled again for each chunk of output). As a side-effect, programs running in different windows can send output to the printer simultaneously. Data sent to the printer is not displayed in the window. The info command displays a line starting "PRIN" while the printer is active.
Screen maintains a hardstatus line for every window. If a window gets selected, the display"s hardstatus will be updated to match the window"s hardstatus line. If the display has no hardstatus, the line will be displayed as a standard screen message. The hardstatus line can be changed with the ANSI Application Program Command (APC): "ESC_
Typing screen without any options starts a new screen, often with no messages or notice indicating that a new screen has started. To view the available commands press C-a (Ctrl+A) and then let go and press a ? to see available options. To switch between active screens press C-a multiple times.
What happens when you cat out a file that’s larger than your console can display and so some content scrolls past? To scroll back in the buffer, hit Ctrl+A and then Esc. You’ll now be able to use the cursor keys to move around the screen and go back in the buffer.
will display a list of the available screen commands and their bindings. Each keystroke is discussed in the section "DEFAULT KEY BINDINGS". The manual
will cause the interrupt key (usually C-c) to interrupt the display immediately when flow-control is on. See the "defflow" .screenrc command for details.
(other)Toggle to the window displayed previously. Note that this binding defaults to the command character typed twice, unless overridden. For instance, if you use
Execute a command at other displays or windows as if it had been entered there. "At" changes the context (the "current window" or "current display" setting)
identifier in front of the "#", "*" or "%"-character selects all users, displays or windows because a prefix-match is performed. Note that on the affected
display(s) a short message will describe what happened. Permission is checked for initiator of the "at" command, not for the owners of the affected display(s).
"other") may be called again. In shared windows the command will be repeated for each attached display. Beware, when issuing toggle commands like "login"! Some
commands (e.g. "process") require that a display is associated with the target windows. These commands may not work correctly under "at" looping over windows.
Change background-color-erase setting. If "bce" is set to on, all characters cleared by an erase/insert/scroll/clear operation will be displayed in the
bind \033 screen -ln -t root -h 1000 9 suwould bind the space key to the command that displays a list of windows (so that the command usually invoked by "C-a C-w" would also be available as "C-a
behaves identical to "defbreaktype". This will be changed in the future. Calling "breaktype" with no parameter displays the break method for the current
This command controls the display of the window captions. Normally a caption is only used if more than one window is shown on the display (split screen
!/bin/shCreates another shell in the same window, while the original shell is still running. Output of both shells is displayed and user input is sent to the new
line to display messages. If the flag is set to "off", these messages are overlaid in reverse video mode at the display line. The default setting is "on".
Set the display height to a specified number of lines. When no argument is given it toggles between 24 and 42 lines display. You can also specify a width if
their current bindings. Subsequent pages will display the custom commands, one command per key. Press space when you"re done reading each page, or return to
exit early. All other characters are ignored. If the "-c" option is given, display all bound commands for the specified command class. See also "DEFAULT KEY
-(-)flow flow control disabled. Agrees with automatic control.The current line wrap setting ("+wrap" indicates enabled, "-wrap" not) is also shown. The flags "ins", "org", "app", "log", "mon" or "nored" are displayed
Redisplay the last contents of the message/status line. Useful if you"re typing when a message appears, because the message goes away when you press a key
Lock this display. Call a screenlock program (/local/bin/lck or /usr/bin/lock or a builtin if no other is available). Screen does not accept any command
notification message in the status line at the first sign of output and the window will also be marked with an "@" in the window-status display. Monitoring is
Tell screen how to deal with user interfaces (displays) that cease to accept output. This can happen if a user presses ^S or a TCP/modem connection gets cut
"blocked" and stop sending characters to it. If at some time it restarts to accept characters, screen will unblock the display and redisplay the updated window
argument, the displays paste buffer is the destination. Note, that "paste" uses a wide variety of resources: Whenever a second argument is specified no current
window is needed. When the source specification only contains registers (not the paste buffer) then there need not be a current display (terminal attached), as
this session is displayed. Caution: The $STY environment variables still reflects the old name. This may result in confusion. The default is constructed from
Split the current region into two new ones. All regions on the display are resized to make room for the new region. The blank window is displayed on the new
Uses the message line to display the time of day, the host name, and the load averages over 1, 5, and 15 minutes (if this is available on your system). For
parameter toggles the setting. If a second parameter is given, the display"s encoding is also changed (this should rather be done with screen"s "-U" option).
visual bell, a "vbell-message" is displayed in the status line when the bell character (^G) is received. Visual bell support of a terminal is defined by the
Display all windows in a table for visual window selection. The desired window can be selected via the standard movement keys (see the "copy" command) and
Uses the message line to display a list of all the windows. Each window is listed by number with the name of process that has been started in the window (or
use this for displaying its messages, otherwise a line of the current screen will be temporarily overwritten and output will be momentarily interrupted. The
pad the string to the display"s width (like TeX"s hfill). If a number is specified, pad to the percentage of the window"s width. A "0" qualifier tells
clear all attributes, write in default color on yellow background.%-Lw%{= BW}%50>%n%f* %t%{-}%+Lw%
If you"re running with flow-control enabled and find that pressing the interrupt key (usually C-c) does not interrupt the display until another 6-8 lines
switch screens and return, or update the screen with "C-a l" you would see the version of the output you would have gotten without "interrupt" being on. Also,
Normally the name displayed is the actual command name of the program created in the window. However, it is sometimes useful to distinguish various programs of
part of the prompt"s length. If these invisible characters aren"t a multiple of 8 then backspacing over a tab will result in an incorrect display. One way to
hardstatus line. If the display has no hardstatus the line will be displayed as a standard screen message. The hardstatus line can be changed with the
Looking at the code it seems like the relevant functions (ScreenCapturerLinux::GetSourceList and ScreenCapturerLinux::SelectSource) are just not implemented. I"m not sure offhand how much work would be involved in writing these, but I"d be willing to take a look when I have a chance, assuming we"re happy with this being a P3.
Until this issue is fixed, here https://github.com/Ashark/hliss is good script with quick workaround for this problem to share only one screen via Firefox on Linux with multiple monitors setup.
Screen sharing with Jitsi-Web or Citrix-Webclient with Firefox 84.0.2 (64-Bit) on Linux (ubuntu 20.04, manjaro) with multiple desktops - you can"t select a specific desktop. Unfortunately, you can only select the entire screen. This is problematic, because the displayed screen is no longer readable by the meeting participants. Unfortunately I have to use other browsers like chromium, Edge ...
I work for a company doing reports, due to the pandemic we need to project all the presentations remotely using services like Google Meet, but I use 2 screens, when I need to present a report together with the draft files, navigation, consoles, etc. I am obliged to project both screens instead of just one and people who have a notebook see the image too long, the same happens with mobile devices, I can"t have my drafts on one screen and present on the second.
+1. The bug doesn"t seem to be related to a distro. I use i3wm and the bug is present. When I have to share my screen I use Chromium which detects the screens properly.
Hi, I"m a Webex developer. This issue affects the user experience for the Webex web app on Linux since the maximum resolution we allow for screen sharing is 1080p and this effectively cuts the sharing resolution in half if the user is using 2 monitors (not to mention it might be a privacy issue if the user does not mean to share their content from another screen).
I"m sorry, i"m new on Linux and bugzilla and reporting bugs and stuff...does that mean that is going to be implemented soon? (also not a programmer :S sorry)
I can confirm that this work now as expected on FF 98.0a1 (2022-01-13). Launched FF in Wayland on Fedora 35 running Gnome Wayland session using dual displays (laptop and external monitor).
I can confirm that this work now as expected on FF 98.0a1 (2022-01-13). Launched FF in Wayland on Fedora 35 running Gnome Wayland session using dual displays (laptop and external monitor).
Ms.Josey 
Ms.Josey