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Comments on Show the command argument in Tmux status-line

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Show the command argument in Tmux status-line

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This is the relevant fragment of my Tmux configuration file.

set  -g  automatic-rename              on
set  -g  automatic-rename-format       "#{pane_current_command}"
set  -g  window-status-format          "#I:#W"
set  -g  window-status-current-format  "#I:#W"

With that, each window is represented by "{index}:{current_pane_command}" in the status-line. This is quite useful to know which window to jump to with Prefix+Number, except when, for example, two windows are displaying man-pages, since then both windows are listed as "{index}:man".

Status-line with two "man"

Can I configure Tmux such that the window name also includes the first argument (if any) to the command? In that case, the line would show

1:top|2:man sh|3:man tmux

tmux command-line

posted over 5 years ago

CC BY-SA 4.0

5y ago by Alexei‭

Quasímodo‭

1077 reputation 8 22 123 32

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In general you can use `#()` to get the last line of the output from an arbitrary shell command. The ... (1 comment)

Kamil Maciorowski‭ wrote over 1 year ago · edited over 1 year ago

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In general you can use #() to get the last line of the output from an arbitrary shell command. The command (script) shall e.g. use #{pane_tty} already expanded by tmux, find the current foreground process group for this tty, find its leader (or heuristically another member, if the leader has exited), process /proc/PID/cmdline and print what you want. I have even implemented this in a quick and dirty way. The problem is tmux does not wait for the command to finish and often uses buffered result from the previous run. In effect, when you run something or when something finishes, the old name may linger quite long. Activity (especially input) in the pane may trigger an update. In general this is hilariously useless: jump to a window to trigger an update that will tell you if this is the right window. Additionally, when moving from pane to pane in a window, the buffering results in the window being renamed according to the last visited pane, not the current.

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Comments on Show the command argument in Tmux status-line

Show the command argument in Tmux status-line

1 comment thread