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--- software:cli:screen [2024/11/01 14:33] – warnaud
+++ software:cli:screen [2025/07/07 07:11] (current) – warnaud
@@ Line 1: / Line 1: @@
+  - Share a screen session: \\ in one terminal <code bash> screen -S SharedSession </code> in another terminal <code bash> screen -x SharedSession </code> :!: Require same user.\\ See [[https://www.howtoforge.com/sharing-terminal-sessions-with-tmux-and-screen]] for more details and tmux examples
+  - Logging: \\ To save everything that is in your screen session, at the beginning: <code>Ctrl + a + h </code>
+  - Detach a screen inside a screen:<code>Ctrl + a + a + d</code>
+  - Serial console: <code bash> screen /dev/ttyS0 19200</code>
+==== Upgrading system ====
+Network might goes down while full system upgrade
+<code bash>ssh -t machine.to.update screen -d -R -S Upgrade</code>
+If it goes down, same command reconnects to the screen session "Upgrade"
+====== CheatSheet ======
+Here's a quick cheatsheet for GNU Screen with start/reconnect commands and main key bindings:
+===== Starting and Reconnecting =====
+==== Start a new screen session: ====
+<code>screen</code>
+==== Start a named screen session: ====
+<code>screen -S session_name</code>
+==== Reconnect to a detached session: ====
+<code>screen -r</code>
+==== List running sessions: ====
+<code>screen -ls</code>
+==== Reconnect to a specific session: ====
+<code>screen -r session_name</code>
+===== Main Key Bindings (defaults) =====
+All commands are prefixed with `Ctrl+a` (denoted as `C-a` below)
+==== Window Management: ====
+   * `C-a c`: Create a new window
+  * `C-a n`: Switch to next window
+  * `C-a p`: Switch to previous window
+  * `C-a 0-9`: Switch to window 0-9
+  * `C-a "`: List all windows
+  * `C-a A`: Rename current window
+==== Session Management: ====
+  * - `C-a d`: Detach from current session
+  * - `C-a x`: Lock the screen session
+Split Screen:
+  * `C-a S`: Split display horizontally
+  * `C-a |`: Split display vertically
+  * `C-a tab`: Switch between regions
+Copy Mode:
+  * `C-a [`: Enter copy mode
+  * `C-a ]`: Paste from copy buffer
+Other Useful Commands:
+  * `C-a ?`: Show help
+  * `C-a a`: Send `Ctrl+a` to the current window
+  * `C-a k`: Kill current window
+  * `C-a \`: Kill all windows and terminate screen
+Remember that you can customize these bindings in your `~.screenrc` file to suit your preferences.
+References:
+  * https://www.rackaid.com/blog/linux-screen-tutorial-and-how-to/
+  * https://www.howtoforge.com/sharing-terminal-sessions-with-tmux-and-screen
+  * http://www.computerhope.com/unix/screen.htm
+  * https://aperiodic.net/screen/interface
+  * https://stackoverflow.com/questions/8353470/gnu-screen-custom-key-bindings-format
+  * https://wiki.archlinux.org/title/GNU_Screen
+  * https://www.gnu.org/software/screen/manual/html_node/Default-Key-Bindings.html
+  * https://www.gnu.org/software/screen/manual/html_node/Key-Binding.html
+  * https://opensource.com/article/17/3/introduction-gnu-screen
+  * https://web.mit.edu/gnu/doc/html/screen_13.html
+  * https://tonisagrista.com/blog/2021/gnu-screen-cheatsheet/