Blog

https://youtu.be/QWPyYx54JbE Now it’s time to switch gears, we are onto a different part of our day and there are just too many sessions running and we need to clean up shop. kill-server # [1] One viable option is to nuke the whole dang thing. I actually do this more than you might think. tmux kill-server save and commit your work diligently before kill-server kill-session # [2] A more reasonable option might be to kill a single session. # kills the current session tmux kill-session # kills the session named scratch tmux kill-session -t scratch choose-tree # [3] Killing sessions one by one from the command line can be a bit tedious, and involve more keystrokes than necessary. Another option built right into tmux is choose-tree. By default choose-tree is bound to prefix+s, that’s pressing control+b then s. Once you are in choose-tree, you can navigate around with your configured navigation scheme, press x to kill a session, or pane or window then y to confirm. You can also ...

https://youtu.be/XucVVgGmesM I see you there, trying to script out your tmux layouts. Tryig to get each project setup just perfect with a script, but you keep stumbling over yourself with duplicate session error messages The has-session tmux command is a handy tool to prevent this duplicate session error message when scripting your tmux layouts. command line # [1] The command is pretty straight forward, you simply ask tmux if the session name you are looking for exists. tmux has-session -t "waylonwalker_com" How I navigate tmux in 2021 [2] for more information on how I navigate tmux, check out this full post Also check out the full YouTube tmux-playlist [3] to see all of the videos in this series. References: [1]: #command-line [2]: /tmux-nav-2021/ [3]: https://www.youtube.com/playlist?list=PLTRNG6WIHETB4reAxbWza3CZeP9KL6Bkr

https://youtu.be/Y1MYmL8ZolE Tmux list keys can be a useful tool to help remind you of what kebindings you have setup. You can search for them and scroll just like in tmux copy-mode. command line # [1] You can call list-keys from the command line but the interface is not very usable by itself. It might be nice to mix with grep or a pager in some circumstances. tmux list-keys tmux command line # [2] Running list-keys from within the tmux command line puts you into a much more pleasant copy-mode. list-keys default keybinging # [3] By default tmux comes with list-keys bound to prefix+?. bind-key ? list-keys list-keys man page # [4] You can see the additional flags provided by tmux in the man page for list-keys. list-keys [-1aN] [-P prefix-string -T key-table] [key] (alias: lsk) List key bindings. There are two forms: the default lists keys as bind-key commands; -N lists only keys with attached notes and shows only the ke y and note for each key. With the default form,...

https://youtu.be/mvgM8UH11_U The tmux status bar can be a handy tool to remind yourself where you are within tmux. It can also include a bunch of system information like battery status, cpu, mem, whatever you can get from the command line. Honestly I like to keep it minimal, and actually keep it turned off most of the time. I find that it helps a little bit for others to follow along if I keep it on in certain circumstances. show the status bar # [1] You can set a hotkey to show or hide the status bar. bind s set-option -g status bind C-s set-option -g status setting the background transparent # [2] I really want a minimal status bar with very little bling, I want it to get out of the way an not draw too much attention, so step one is to set the background to transparent. # default statusbar colors #―――――――――――――――――――――――――――――――― set-option -g status-bg default set-option -g status-fg colour240 setting default colors # [3] I want my status bar to somewhat match the rest of ...

https://youtu.be/dDq0depPrTs So you have been tricking out that .tmux.conf, you’re looking for a silky smooth workflow that lets you fly through tmux with super speed, but every time you tweak out that .tmux.conf you have to restart your whole session. Not amymore, Let’s add this to the bottom of our tmux.conf so that you can see everytime it gets sourced. display-message "hello beautiful" command # [1] We can run this command from your shell to re-source your changed .tmux.conf tmux source-file ~/.tmux.conf It also works from the tmux command line. source-file ~/.tmux.conf tmux hotkey # [2] It’s very common to set this up as a keybinding so that you can do it easily without needing to memorize the exact command. bind -T prefix r source-file ~/.tmux.conf bind -n M-r source-file ~/.tmux.conf from vim # [3] This is my preferred way of re-sourcing my .tmux.conf. It sits quietly in the background, and I dont need to remember to do anything. If you are a vim user you can automat...

https://youtu.be/DkJ9rb85LC0 Quickly getting between tmux splits is critical skill for productivity. You can get by with next or prev session for awhile, but if you have more than about three session you need something a bit more targeted. Full Screen selector # [1] I have used this fzf one keybinding for quite awhile, honestly I did not make it up, and cannot remember where it came from. It will open up a session picker in a new full screen window. bind C-j new-window -n "session-switcher" "\ tmux list-sessions -F '#{?session_attached,,#{session_name}}' |\ sed '/^$/d' |\ fzf --reverse --header jump-to-session --preview 'tmux capture-pane -pt {}' |\ xargs tmux switch-client -t" Popup selector # [2] Like with many of my keybindings I have swapped this one out for a popup version. It just feels so smooth. bind C-j display-popup -E "\ tmux list-sessions -F '#{?session_attached,,#{session_name}}' |\ sed '/^$/d' |\ fzf --reverse --header jump-to-session --preview 'tmux capt...

https://youtu.be/8kZnjHPYnKU Now that we are splitting up work into their own sessions, lets talk about how to navigate between them without the command line. Navigating sessions is what kept me using a too many splits and windows workflow for far too long. It was rough, I was always tripping over panes and windows until I got too frustrated and just ran tmux kill-server to start on a new blank slate. bind -n M-P switch-client -p bind -n M-N switch-client -n How I navigate tmux in 2021 [1] for more information on how I navigate tmux, check out this full post Also check out the full YouTube tmux-playlist [2] to see all of the videos in this series. References: [1]: /tmux-nav-2021/ [2]: https://www.youtube.com/playlist?list=PLTRNG6WIHETB4reAxbWza3CZeP9KL6Bkr

https://youtu.be/c-a2Bnv_NJ0 Scripting tmux to open up specific applications can be intimidating your first time. It can be tricky to get it to start in the right directory. If you are trying to assign applictaions to a keybinding it can be easy to mess up and have weird things happen every time your ~/.tmux.conf gets sourced. Open htop in an above split # [1] I used this one for a number of years to take a quick peek into my systems performance while a memory intensive task was running. bind -n M-t split-window htop \; swap-pane -U 🗒️ note that the swap-pane -U will make the htop split active immediately Open htop in a popup # [2] With the new tmux popup windows I really like the flow of just peeking at htop in a popup and jumping back into what I was doing. It can have a more consistennt look, and not mess with the window layouts. bind -n M-t popup -E -h 95% -w 95% -x 100% "htop" Open an applicaiton in the current directory # [3] One thing that can be tricky is getting ap...

https://youtu.be/WRLRiQDjVIA So you have been working on your tmux workflow, you’ve dropped a too many window workflow for scoping work that belongs together into separate sessions, but you cannot remember what session your work is in. If your diligent you have named your window when you created it, but sometimes its intent has changed or your were just plain too lazy at the time for the extra characters needed to name it. Don’t worry we can still give that session a descriptive name. Let’s rename some sessions in the terminal. # rename the current session to me tmux rename-session me # rename the me session to scratch tmux rename-session -t me scratch There is a default keybinding that you can use <prefix>+$ to rename the current session in the tmux command line. bind-key $ command-prompt -I #S "rename-session '%%'" I’ve also had this keybinding kicking around for years, but I rarely use it anymore. You will see why in an upcoming video. bind -n M-W command-prompt "rename-ses...

https://youtu.be/5KE7Il7SOEk This is something that I made up but use every single day, this is what keeps much of what is on my blog or my teams private work wiki going. I have a few very important directories that I have assigned directly to a hotkey for fast session switching. bind -n M-i new-session -A -s waylonwalker_com "cd ~/git/waylonwalker.com/ && nvim" bind i popup -E -h 95% -w 95% -x 100% "tmux new-session -A -s waylonwalker_com 'cd ~/git/waylonwalker.com/ && nvim'" bind -n M-I popup -E "tmux new-session -A -s waylonwalker_com 'cd ~/git/waylonwalker.com/ && nvim'" tmux new-session [1] This one is building off of yeserday’s new-session post, make sure you check that one out as well. How I navigate tmux in 2021 [2] for more information on how I navigate tmux, check out this full post Also check out the full YouTube tmux-playlist [3] to see all of the videos in this series. References: [1]: /tmux-new-session/ [2]: /tmux-nav-2021/ [3]: https://www.youtube.com/playlist?...

https://youtu.be/LbQNdCAUogE This one starts a new chapter in our series that is going to open up a whole new set of workflow productivity options, understanding how the new-session command is a critical command in our adventure into tmux glory. This is going to open the door for some seriously game changing hotkeys and scripting. # create a new session tmux new-session # create a new session detached tmux new-session -d # create a new session and name it tmux new-session -s me # create a new named session and attach to it if one exists tmux new-session -As me How I navigate tmux in 2021 [1] for more information on how I navigate tmux, check out this full post Also check out the full YouTube tmux-playlist [2] to see all of the videos in this series. References: [1]: /tmux-nav-2021/ [2]: https://www.youtube.com/playlist?list=PLTRNG6WIHETB4reAxbWza3CZeP9KL6Bkr

https://youtu.be/A1qx3tNKDdA tmux detach is a handy tmux command that will quit your current session while keeping it running. The full name of the comamnd is detach-client, detach is a shorthand. default keybinding bind-key d detach-client I have mine bound to mod+d where mod is alt. bind -n M-d detach-client https://waylonwalker.com/tmux-nav-2021/ for more information on how I navigate tmux, check out this full post Also check out the full YouTube tmux-playlist [1] to see all of the videos in this series. References: [1]: https://www.youtube.com/playlist?list=PLTRNG6WIHETB4reAxbWza3CZeP9KL6Bkr

https://youtu.be/JQ0yDCVu44E attach is one of the most useful features of tmux. If you have no interest in tmux for pane and window management, you should use tmux for this. It can be a life saver if you ever get disconnected from the host machine or accidently close your terminal you can connect right back into the session you were just in using attach. attach # [1] tmux attach this command will simply attach back to tmux if you are ever disconnected If you ever run long running tasks on a remote machine by sshing into this you should be doing it inside tmux, or something like tmux so that you do not loose your work. attach to a specific session # [2] If you have multiple sessions running you can select the session that you want to attach to by passing -t <name-of-session>. tmux attach -t scratch How I navigate tmux in 2021 [3] for more information on how I navigate tmux, check out this full post Also check out the full YouTube tmux-playlist [4] to see all of the videos i...

These are my notes from taking @nnja’s FEM course git-in-depth [1]. requirements # [2] - git --version > than 2.0 creating a git # [4] echo "hello" | git hash-object --stdin References: [1]: https://frontendmasters.com/courses/git-in-depth/ [2]: #requirements [3]: /glossary/git/ [4]: #creating-a-git

https://youtu.be/LY41GLn_DGg tmux ls will list the sessions that you have running within the tmux server if tmux is currently running. This is handy to combine with commands such as attach. tmux ls tmux attach [1] How I navigate tmux in 2021 [2] for more information on how I navigate tmux, check out this full post Also check out the full YouTube tmux-playlist [3] to see all of the videos in this series. References: [1]: /tmux-attach/ [2]: /tmux-nav-2021/ [3]: https://www.youtube.com/playlist?list=PLTRNG6WIHETB4reAxbWza3CZeP9KL6Bkr

https://youtu.be/SNu-4IrkjAs So far we have covered a lot of tmux commands and how they map to keybindings but these same commands can be executed at the command line. From the command line # [1] Let’s make a popup that displays our git [2] status for 5s or until we close it manually. We can run the following command at the command line, in a split. tmux display-popup -E -d '#{pane_current_path}' 'git status && sleep 5' From the tmux command line # [3] Or we can open the tmux command line and run it from tmux’s built in command line, which is very similar to bim EX mode. By default the tmux command line can be opened with prefix+[. display-popup -E -d '#{pane_current_path}' 'git status && sleep 5' 🗒️ note that the tmux command is called by default when inside of tmux. Make it a keybinding # [4] Finally we can make it a keybinding by adding a bind command ahead of our tmux command, then we can execute this in the tmux command line or add it to our ~/.tmux.conf. bind s displ...

https://youtu.be/-ypY_-VmBKk tmux copy-mode is a tmux mode that lets you scroll, search, copy, and jump your way through a pane. There are a ton of keybindings for copy-mode, the main ones you will need to know are / for searching down ? for searching up, n for next item, space for starting a selection, and enter to copy the selection. Arrow keys will be used for navigation unless you have specified vi mode, then it will be hjkl. Default keybinding to get into copy mode is prefix+[. bind-key [ copy-mode If you are a vim user you will likely want to use vi style keys, add this to your ~/.tmux.conf file to enable vi mode. setw -g mode-keys vi full list of copy-mode keybindings from the man page. Command vi emacs append-selection append-selection-and-cancel A back-to-indentation ^ M-m begin-selection Space C-Space bottom-line L cancel q Escape clear-selection Escape C-g copy-end-of-line [<prefix>] D C-k copy-line [<prefix>] copy-pipe [<command>] [<prefix>] copy-pipe-no...

https://youtu.be/Vm5rRtcVXLw Join-pane allows you to join panes that you have broken away from your window, or created in a different window to the window you want it in. As far as I know there is not a default keybinding for it. Before you can join a pane you must first have a pane marked to join. Once you mark a pane, go back to the window you want to join it to and join-pane. My keybindings, you must add this to your ~/.tmux.conf file to use them. # Mark and swap panes #―――――――――――――――――――――――――――――――――――――――――――― bind -n M-m select-pane -m # mark bind -n M-M select-pane -M # unmark bind -n M-< join-pane How I navigate tmux in 2021 [1] for more information on how I navigate tmux, check out this full post Also check out the full YouTube tmux-playlist [2] to see all of the videos in this series. References: [1]: /tmux-nav-2021/ [2]: https://www.youtube.com/playlist?list=PLTRNG6WIHETB4reAxbWza3CZeP9KL6Bkr

https://youtu.be/ICL609F2xnc Break-pane is a handy tmux command when your layout gets too cramped and you want to just move a split into its own window. Calling break-pane does exactly that, it creates a new-window for you and moves your currently selected split into that window Default key binding for break-pane bind-key ! break-pane How I navigate tmux in 2021 [1] for more information on how I navigate tmux, check out this full post References: [1]: /tmux-nav-2021/

https://youtu.be/Rn6mOarCQ-Y Zooming into the current split in tmux is a valuable tool to give yourself some screen real estate. These days I am almost always presenting, streaming, or pairing up with a co-worker over a video call. Since I am always sharing my screen I am generally zoomed in to a level that is just a bit uncomfortable, so anytime I make a split it is really uncomfortable, being able to zoom into the split I am focused on is a big help, and also help anyone watching follow where I am currently working. Default key bindings for zooming the current split bind-key z resize-pane -Z I have rebound this to match the default binding with mod+z rather so that I get that single keystroke experience. bind -n M-z resize-pane -Z How I navigate tmux in 2021 [1] for more information on how I navigate tmux, check out this full post References: [1]: /tmux-nav-2021/