Finding time when a command has been executed

[arraman]

Hi,

Is there a way in which we can identify the time a particular command has been executed (from the history file).

Thanks in Advance.
Raghu.

[emsenn]

stat /path/to/file

For example, to see the last time the 'cp' command was used,

stat /bin/cp

Of course, this only works if you have atime enabled, which most distros do by default.

[GNU-Fan]

Not by default. Some programs do write in the log files (browse /var/log).

There are some ways to install such a facility, of course. For example, you could re-alias certain commands so that they first invoke a log entry (Program $prg has been executed at $time by %username) and then do run the actual program.

[aparna123]

hi,
can u please tell me how can this be done.
I m new to linux n know very few things about it