Tmux
Table of contents
Copy tmux pane contents to a file
tmux capture-pane -b <buffer_name>
tmux save-buffer -b <buffer_name> /tmp/tmux.log
Copy tmux pane contents to a file (with ANSI color codes)
Call capture-pane with the -e flag to capture color codes.
tmux capture-pane -e -b <buffer_name>
tmux save-buffer -b <buffer_name> /tmp/tmux.log
Use ansi2html to render the output to HTML.
cat /tmp/tmux.log | ansi2html > /tmp/output.html
I use a little wrapper script to capture the terminal content shown in this blog post: Exploring my listen history with VisiData.