Mar 112010
 

By Vivek Gite @ cyberciti.biz

How do I display shell command history with date and time under UNIX or Linux operating systems?

If the HISTTIMEFORMAT is set, the time stamp information associated with each history entry is written to the history file, marked with the history comment character. Defining the environment variable as follows:

$ HISTTIMEFORMAT="%d/%m/%y %T "

OR

$ echo 'export HISTTIMEFORMAT="%d/%m/%y %T "' >> ~/.bash_profile

Where,
%d – Day
%m – Month
%y – Year
%T – Time
To see history type

$ history

Sample outputs:

….
..
986 11/03/10 04:31:36 memcached-tool 10.10.28.22:11211 stats
987 11/03/10 04:31:36 w
988 11/03/10 04:31:37 iostat
989 11/03/10 04:31:37 top
990 11/03/10 04:31:37 at
991 11/03/10 04:31:38 atop
992 11/03/10 04:31:40 collectl
993 11/03/10 04:31:41 grep CPU /proc/cpuinfo
994 11/03/10 04:31:45 vmstat 3 100
995 11/03/10 04:31:55 sar -W -f /var/log/sa/sa12
….
..

Nice…

 Posted by at 8:31 am