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Right now I have my iTerm session configured to use zsh (/usr/local/bin/zsh), but I'm trying to configure tmux to use zsh as well, instead of /bin/bash/, which it's currently defaulting to. So far nothing I've read up on has gotten me where I need. Any ideas or things I may have missed?

Below are some details about my current setup. Thanks!

Check state:

1) Open iTerm

echo $SHELL

/bin/bash

ps -p $$

PID TTY TIME CMD 19626 ttys000 0:00.52 /usr/local/bin/zsh

2) Run tmux

tmux

echo $SHELL

/usr/local/bin/zsh

Configuration:

iTerm Profiles > General > Command:

/usr/local/bin/zsh

In .tmux.conf:

set-option -g default-shell /usr/local/bin/zsh

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  • 2
    According to 2) tmux is using Zsh as your shell. What is your issue? – jasonwryan Jul 5 '15 at 23:49
  • Sorry, I should have included that executing ps -p $$ in tmux prints: 20201 ttys001 0:00.02 -bash. Even though the $SHELL variable seems to be set, tmux doesn't actually seem to be using zsh. Also, on this machine powerline's only been configured for bash. Every time I start tmux, powerline's definitely visible. – Justian Meyer Jul 6 '15 at 1:43
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You need to set default-command:

set -g default-command /usr/local/bin/zsh

default-shell variable only use to create a login shell, when default-command is empty - which is default value.

Or you can simply change your default shell to zsh, in this case, tmux will start a login shell, instead of non-login shell.

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  • 1
    This still doesn't seem to solve the issue. – Justian Meyer Jul 8 '15 at 5:09
  • @JustianMeyer: Can you show me your .tmux.conf? – cuonglm Jul 8 '15 at 5:12
  • @JustianMeyer Did you restart tmux with killall tmux; tmux command? – MOHRE Jul 18 '17 at 6:46
1

On top of what @cuonglm said, check for references to bash in your .tmux.conf.

For example, I was using a typical integration for copying & pasting in iTerm on Mac:

set-option -g default-command "reattach-to-user-namespace -l bash"

... which, to function properly with zsh had to be changed to:

set-option -g default-command "reattach-to-user-namespace -l zsh"

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