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Why does tmux say there is no running session?
I was trying to re-attach to a long-running tmux session to check up on a python web-application. However tmux attach claims that there is no running session, and ps shows a tmux process (first line), but with a question mark instead of the pts number.
What does terminal absence mean in tmux server?
If the socket is accidentally removed, the SIGUSR1 signal may be sent to the tmux server process to recreate it. Terminal absence is a sign of detached session. And all your tmux session names can be found thus: — this is kinda distro-dependent. Almost distro-independent (and more hardcore) would be: where 16709 is the PID of tmux in your listing.
Can you re-attach a process ID in tmux?
You can not re-attach a process id. You need to reattach the corresponding tmux session. So do tmux ls. Pick whatever session you want to re-attach. Then do tmux attach -d -t to re-attach it to a new tmux instance and release it from the old one.
Where is the default tmux.conf file located?
As per dpkg -L tmux which shows you what files the package installed, there is no default tmux.conf included in the package. /etc/tmux.conf is just a location that you may use (only makes sense with multiple users using tmux) that will be evaluated before ~/.tmux.conf.
How to save tmux history to a file?
Once you have the data in a buffer, you can save it with save-buffer. Here is an example binding (suitable for .tmux.conf) that wraps it all up with a prompt for the filename: bind-key P command-prompt -p ‘save history to filename:’ -I ‘~/tmux.history’ ‘capture-pane -S -32768 ; save-buffer %1 ; delete-buffer’.
What happens to tmux when history buffer is full?
When a pane’s history buffer is full, tmux discards the oldest 10% of the lines instead of discarding just one line. This means a pane’s effective history depth will sometimes be as low as 90% of its configured limit. If you want something you can run from the command line (instead of using your tmux prefix keys), try running: