suguru, I do not think it is possible. bash saves its commands into ~/.bash_history with one command per line. It does not save the time of each command. So, although you cannot see when you executed a particular command, you can follow Ebel's instructions for seeing how long a process has been running.
Alternately, you can change your bash prompt via the PS1 variable (see this page
) to display the time for the PROMPT. So for example like this:
12:31:04 pwhite@machine $ gnucash
13:05:41 pwhite@machine $
In this case, you can implicitly see how long each command took to execute before exiting and returning to the prompt.