Or a colored prompt with a timestamp and hostname, great with a huge scrollback. PS1='\[\033[1;32m\](\A) <\h> [$PWD \$ \[\033[m\]' Edit: Using tmux with a 200

Or a colored prompt with a timestamp and hostname, great with a huge scrollback. PS1='\[\033[1;32m\](\A) <\h> [$PWD \$ \[\033[m\]' Edit: Using tmux with a 200,000 line scrollback, you can also search scrollback based on the hour in which you ran the command. A search for "(12:" would put you right in the ball park.