I find it more preferable to setup bash (or whatever shell you are using) to append into .BASH_HISTORY file at every command. You don't always remember on which

I find it more preferable to setup bash (or whatever shell you are using) to append into .BASH_HISTORY file at every command. You don't always remember on which tab/pane/window you type which command and most people would do Ctrl + R or use a fuzzy search tool anyway. Also many times you open a new tab/pane/window and would like to access the history of another one who is already busy running a job so a common history is usually preferrable. YMMV of course.