From c1d3ec9af717484057360dc3b99b78b9c1837726 Mon Sep 17 00:00:00 2001
From: ronny abraham <ronny@ronnys-MacBook-Pro.local>
Date: Mon, 28 Jul 2025 06:10:28 +0300
Subject: [PATCH] got up to ssh

---
 _subsections/lesson-05.org | 131 +++++++++++++++++++++++++++++++++++--
 1 file changed, 127 insertions(+), 4 deletions(-)

diff --git a/_subsections/lesson-05.org b/_subsections/lesson-05.org
index eab2362..1977a6a 100755
--- a/_subsections/lesson-05.org
+++ b/_subsections/lesson-05.org
@@ -10,7 +10,7 @@
 - [[https://www.youtube.com/playlist?list=PLyzOVJj3bHQuloKGG59rS43e29ro7I57J][Playlist: Missing Semester]]
 - [[https://www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqbVVJc2RzZ25nMmlrVW5zVGRsTS1fX2ladmRPQXxBQ3Jtc0ttWjQ5Ujcyd19TekNncTZGNEp1eDc3RWhzTzhvMW9oSTFoUl9JbGt1Mi0yU3FLc00wVUx1UXNJdFQxTjBjMWphdUZxNnU1WUYzTmFqd3RRemNLUDBJMlZkV3B0SnB4RVhpaUhvWWtnc1RISW1WVzdYWQ&q=https%3A%2F%2Fmissing.csail.mit.edu%2F2020%2Fcommand-line%2F&v=e8BO_dYxk5c][class notes]]
 
-- Curr: https://youtu.be/e8BO_dYxk5c?si=7tmshQsaihcvs-aP&t=2018
+- Curr: https://youtu.be/e8BO_dYxk5c?si=ttNryjIiOS0BxBqD&t=2542
 
 *** timestamps
 :PROPERTIES:
@@ -26,12 +26,12 @@
 + [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=881s][14:41 - Terminal Multiplexer]]
 + [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=1112s][18:32 - The Key Bindings]]
 + [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=1536s][25:00 - Dot Files]]
-+ [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=1799s][29:59 - Context Based Configuration File]] *current*
++ [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=1799s][29:59 - Context Based Configuration File]]
 + [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=2004s][33:24 - Terminal Emulator]]
 + [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=2196s][36:36 - Aliases]]
 + [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=2286s][38:06 - Common Folder Structure]]
 + [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=2344s][39:04 - Symlinks]]
-+ [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=2552s][42:32 - ssh]]
++ [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=2552s][42:32 - ssh]] *current*
 + [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=2715s][45:15 - ssh keys]]
 + [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=3057s][50:57 - ssh config]]
 + [[https://www.youtube.com/watch?v=e8BO_dYxk5c&t=3231s][53:51 - changing the prefix]]
@@ -165,4 +165,127 @@ alias mv="mv -i"
   - .vimrc
     - vim configuration file
 
-**  terminal emulator
+** tmux
+- run a session, detach and get back to it later
+
+*** link
+- [[https://tmuxcheatsheet.com][cheat sheet]]
+- [[https://www.youtube.com/watch?v=nTqu6w2wc68][network chuck tutorial]]
+
+*** prefix key
+Ctl-B
+
+*** userful commands
+**** detach / attach
+- Ctl-B , D -> detach
+-  tmux a -> reattach
+
+**** reattach to most recent session
+- tmux a
+
+**** attach to a particular session
+- list the tmux session
+- note the index number or name
+- attach to that index -t (target)
+  ~tmux a -t [INDEX]
+
+**** kill
+***** kill a session
+tmux kill-session -t [INDEX]
+
+***** kill session from list windows
+- go into list windows C-b w
+- highlight the one you want dead
+- C-b x, it will ask for confirmation
+
+***** kill ALL sessions
+tmux kill-server
+
+***** kill a pane
+C-b x
+
+***** kill an entire window
+C-b &
+
+**** tmux names session
+-
+  ~tmux new -s name~
+
+****  list session
+- tmux ls
+
+*** 3 layers
+**** layer 1 -> sessions
+- when you hit tmux you start a new tmux session
+
+**** layer 2 -> window
+- when you create a new session, you automatically create an initial window
+
+- C-b c :: create a new window in addition to the existing ones
+  - all windows will be listed in the display line at the bottom
+  - the * indicates the current
+
+- C-b n :: move through your windows
+- C-b < :: rename window
+- C-b w :: list all sessions and windows
+  - you can walk through the list using arrow keys
+  - enter to switch
+
+***** kill session
+- go into list windows C-b w
+- highlight the one you want dead
+- C-b x, it will ask for confirmation
+
+**** layer 3 -> panes
+- panes exist in windows
+- add horizontal pane :: C-b %
+- add vertical pane :: C-b "
+- switch panes :: C-b [arrow]
+- show pane index :: C-b q
+- switch to pane index :: C-b q [index]
+- change pane size :: C-b [hold Ctl] [arrow]
+
+***** preselected pay layout
+- C-b Alt-1-5
+
+***
+
+**  terminal emulator - alacritty
+- very fast
+- useful for heavy displays like neoviim
+- vm mode is good for reloading
+
+*** hint system
+- pattern recognition of terminal output based on regex
+- execute commands on those patterns
+
+**** e.g.
+- url will be opened in browser
+
+**** custom actions
+- shows hints overlay over something recongized
+- for files or other customized action
+
+*** themes
+- black theme
+
+*** copy mode / vim
+- treat terminal output as a vim buffer
+- doesn't support all, but a lot
+
+** aliases
+you can find good alias lists online
+
+** common folder structures
+- use symlinks to store all your dotfiles in one directory
+
+- ~ln -s [path-to-orig] [path-to-link-location]~
+
+#+begin_src text
+~
+├─ .bashrc
+├─ .vimrc
+└─ dotfiles
+   ├─ bashrc
+   └─ vimrc
+#+end_src