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+date = "2017-03-22"
+title = "Tmux and Vim: Copy and Paste on macOS Sierra"
+tags = ["vim", "tmux", "terminal", "macos"]
+description = "As a developer, more than anything, you copy and paste things. Making copy and paste work in properly with Vim and Tmux is, unfortunately, not trivial."
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+
+As a developer, more than anything, you copy and paste things. Making copy and paste work in properly with Vim and Tmux is, unfortunately, not trivial.
+
+There's a lot of information to be found on the internet about setting up copy and paste with Tmux. There's also
+lots of information on how to setup Vim. But then you run Vim 8. On macOS Sierra. And things break down
+quickly. 
+
+This short guide helps you setup Tmux and Vim on macOS Sierra for proper copy pasting glory!
+
+## Dependencies
+
+First, you'll have to install _one_ dependency. I also recommend you install the latest and greatest
+Vim instead of using the (old) version bundled with macOS, and of course, tmux.
+
+``` shell
+brew install reattach-to-user-namespace
+brew install vim tmux 
+```
+
+## Configure Tmux
+
+Tmux is a weird beast. Copy and pasting can be done in different ways, but I prefer the Vim style navigation.
+
+``` text
+# Configure your default shell, Zsh in my case.
+set -g default-shell $SHELL 
+
+# Override the default command to use `reattach-to-user-namespace` for everything.
+set -g default-command "reattach-to-user-namespace -l ${SHELL}"
+
+# Remap prefix to ctrl-a (or caps-a for my mac)
+set -g prefix C-a
+
+# Vim style navigation in copy mode
+setw -g mode-keys vi
+
+# Setup 'v' to begin selection, just like Vim
+bind-key -t vi-copy v begin-selection
+
+# Setup 'y' to yank (copy), just like Vim
+bind-key -t vi-copy y copy-pipe "reattach-to-user-namespace pbcopy"
+
+# Update default binding of `Enter` to also use copy-pipe
+unbind -t vi-copy Enter
+bind-key -t vi-copy Enter copy-pipe "reattach-to-user-namespace pbcopy"
+
+# Bind ']' to use pbbaste
+bind ] run "reattach-to-user-namespace pbpaste | tmux load-buffer - && tmux paste-buffer"
+```
+
+This is how copy pasting will working after you've made the proper changes to your `.tmux.conf`. Note that
+I have remapped <kbd>ctrl</kbd> + <kbd>b</kbd> to <kbd>ctrl</kbd> + <kbd>a</kbd>, because that works pretty
+fast when you've already remapped Caps-Lock to Control.
+
+ * <kbd>ctrl</kbd> + <kbd>a</kbd>, <kbd>[</kbd> to enter copy mode. This allows you to use normal Vim
+ motion keys to move around.
+ * <kbd>v</kbd> to start selection, again use vim motion keys to move around.
+ + <kbd>y</kbd> to yank the selection. <kbd>enter</kbd> also works.
+
+Pasting works just as before:
+
+ * <kbd>ctrl</kbd> + <kbd>a</kbd>, <kbd>]</kbd> 
+
+Congratulation, you can now copy and paste with Tmux. 
+
+## Configure Vim
+
+The changes needed for Vim are minimal. All you need to do is _unset_ the name of the default clipboard, 
+so it will pass through to Tmux. In `~/.vimrc`:
+
+``` vim
+" Clipboard 
+set clipboard=unnamed
+```
+
+## Bonus features
+
+So, copy and paste is now working from Vim, Tmux and Vim-in-Tmux. Pasting is also working as expected. 
+
+As a bonus, when you have two tmux panes or windows with different instances of Vim running, you can now 
+easily copy and paste between them by using normal Vim commands!
+
+## Conclusion
+
+Copy and paste with Vim and Tmux does not work out of the box, but once setup works like a charm.