Print current time and date when a command is issued in linux shell

Question

im trying to print the current time and date to the screen each time a command is issued on sift linux (ubuntu 14) via command line.

so for example

sansforensics@siftworkstation:$ fdisk -l image.dd sansforensics@siftworkstation:$ output of command current time and date sansforensics@siftworkstation:$

im not looking for

start_time=`date +%s` <command-to-execute> end_time=`date +%s` echo execution time was `expr $end_time - $start_time` s.

which prints out the time it took for the commands to run, im looking for the current date and time each time a command is issued.

anubhava · Accepted Answer · 2015-03-23 18:00:45Z

3

You are looking for PROMPT_COMMAND here:

PROMPT_COMMAND='date'

As per man bash:

PROMPT_COMMAND If set, the value is executed as a command prior to issuing each primary prompt.

answered Mar 23, 2015 at 18:00

anubhava

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1 Comment

octo-carrot Over a year ago

That's perfect thank you! been trying to find this for an hour.

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