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tmux: fix TMUX_SHELL #63

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Merged
mandaiy merged 1 commit into from
Jan 12, 2026
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tmux: fix TMUX_SHELL #63

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3 changes: 2 additions & 1 deletion tmux/tmux.conf
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
if-shell '[ -n "#{env:TMUX_SHELL}" ]' 'set-option -g default-shell "#{env:TMUX_SHELL}"'
if-shell '[ -n "${TMUX_SHELL}" ]' 'set-option -g default-shell "${TMUX_SHELL}"'
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@chatgpt-codex-connector chatgpt-codex-connector bot Dec 28, 2025

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P2 Badge Use tmux format expansion for default-shell

In tmux command arguments, ${TMUX_SHELL} is not expanded because tmux only expands its own format strings (e.g., #{env:TMUX_SHELL}) inside set-option. The if-shell condition runs in /bin/sh so the test works, but the set-option argument becomes the literal string ${TMUX_SHELL} and tmux will try to use that literal as the shell path. This breaks users who set TMUX_SHELL, because tmux won’t pick up their intended shell value.

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# set-option -g default-shell "${TMUX_SHELL}"
set-option -g default-terminal screen-256color
set-option -ga terminal-overrides ",xterm-256color:Tc"

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